List of Star Trek characters (G–M)

This article lists characters of Star Trek in their various canonical incarnations. This includes fictional major characters and fictional minor characters created for Star Trek, fictional characters not originally created for Star Trek, and real-life persons appearing in a fictional manner, such as holodeck recreations.

Characters from all series, listed alphabetically

Key

Abbreviation	Title	Medium
TOS	Star Trek: The Original Series (1966–1969)	TV
TAS	Star Trek: The Animated Series (1973–1974)	TV
TNG	Star Trek: The Next Generation (1987–1994)	TV
DS9	Star Trek: Deep Space Nine (1993–1999)	TV
VOY	Star Trek: Voyager (1995–2001)	TV
ENT	Star Trek: Enterprise (2001–2005)	TV
TMP	Star Trek: The Motion Picture (1979)	film
WOK	Star Trek II: The Wrath of Khan (1982)	film
SFS	Star Trek III: The Search for Spock (1984)	film
TVH	Star Trek IV: The Voyage Home (1986)	film
TFF	Star Trek V: The Final Frontier (1989)	film
TUC	Star Trek VI: The Undiscovered Country (1991)	film
GEN	Star Trek Generations (1994)	film
FCT	Star Trek: First Contact (1996)	film
INS	Star Trek: Insurrection (1998)	film
NEM	Star Trek Nemesis (2002)	film
ST	Star Trek (2009)	film

Bajoran characters are listed by family name, which is stated first. Joined Trills are listed by the name of the symbiont, which replaces the family name.

G

Character	Actor	Episodes
Description
Richard Galen (Memory Alpha article)	Norman Lloyd (Memory Alpha article)	The Chase (TNG)
Human male; renowned anthropologist and role model for Picard
Galloway (Memory Alpha article)	David L. Ross (Memory Alpha article)	Miri (TOS) recurring thereafter
Appears in eight Star Trek episodes and in archival footage used for Star Trek: Deep Space Nine's "Trials and Tribble-ations". Ross was given on-screen credit for the final episode, "Turnabout Intruder". Galloway first appears in the first-season episode "Miri" as part of the landing party's security detail.
Elim Garak (Memory Alpha article)	Andrew Robinson (Memory Alpha article)	Past Prologue (DS9) recurring thereafter
Cardassian male; a "plain and simple tailor", in reality a former top operative of the Obsidian Order
Garth of Izar (Memory Alpha article)	Steve Ihnat (Memory Alpha article)	Whom Gods Destroy (TOS)
Human male; former Starfleet officer and fleet captain; hero (at Axanar) and role model of Captain James T. Kirk's. His exploits were required reading at Starfleet Academy in the mid-23rd century. He suffered severe physical injuries from an undisclosed conflict and was taught by the people of Antos IV to use "cellular metamorphosis" to regenerate the damaged parts of his body. Eventually, he became able to change his appearance to match anyone he wished, but was driven insane. He was committed to the Federation penal colony on Elba II, but used his abilities to trick a guard into releasing him. He and several inmates took over the facility and imprisoned Governor Donald Corey. When the Enterprise arrived with a new "miracle" medicine to help cure the once-incurably insane, Garth's gang took Kirk and Spock prisoner, but Garth was later defeated when Spock guessed that he was impersonating Kirk.
Gav (Memory Alpha article)	John Wheeler (Memory Alpha article)	Journey to Babel (TOS)
A Tellarite ambassador murdered aboard Kirk's Enterprise by means of tal-shaya, an ancient Vulcan execution technique.
Forra Gegen (Memory Alpha article)	Henry Woronicz (Memory Alpha article)	Distant Origin (VOY)
Voth male; scientist who believes his Delta Quadrant race are descendants of Earth dinosaurs
Frola Gegen (Memory Alpha article)	Nina Minton (Memory Alpha article)	Distant Origin (VOY)
Voth female; daughter of scientist Forra Gegen
Iliana Ghemor (Memory Alpha article)	None	Second Skin (DS9)
Cardassian female; daughter of Tekeny Ghemor who became an operative of the Obsidian Order going undercover disguised as a Bajoran never to be heard from again.
Tekeny Ghemor (Memory Alpha article)	Lawrence Pressman (Memory Alpha article)	Second Skin (DS9), Ties of Blood and Water (DS9)
Cardassian male; a legate in the Central Command and father of Iliana Ghemor, who went undercover disguised as a Bajoran and never returned. As a young man, Ghemor played a role in the Kiessa massacre. The Obsidian Order abducted Kira Nerys and surgically altered her to appear as Iliana in a convoluted deception intended to expose Ghemor as the leader of the Cardassian dissident movement. Ghemor grew close to Kira and considered her the closest person he had left to family. Just before his death, he was brought to Deep Space 9 to share information vital to the Federation's war against the Dominion.
Sonya Gomez (Memory Alpha article)	Lycia Naff (Memory Alpha article)	Q Who? (TNG), Samaritan Snare (TNG)
Human female; Starfleet ensign serving on the Enterprise-D
Gorkon (Memory Alpha article)	David Warner (Memory Alpha article)	TUC
Chancellor of the Klingon Empire assassinated in Star Trek VI
Gowron (Memory Alpha article)	Robert O'Reilly (Memory Alpha article)	Reunion (TNG) recurring thereafter The House of Quark (DS9) recurring thereafter
Klingon male; chancellor of the Klingon Empire
Gralik (Memory Alpha article)	John Cothran, Jr. (Memory Alpha article)	The Shipment (ENT)
Xindi arboreal. Chief technician of a facility that manufactured kemocite, power source for Xindi weapon against Earth. Changed his allegiance and helped Captain Archer's mission.
Amanda Grayson (Memory Alpha article)	Jane Wyatt (Memory Alpha article) Majel Barrett (Memory Alpha article) Cynthia Blaise (Memory Alpha article) Winona Ryder (Memory Alpha article)	Journey to Babel (TOS), Yesteryear (TAS) TVH TFF ST
Spock's human mother, married to Sarek.[1] In one timeline, she dies between the events in Star Trek IV: The Voyage Home and the Star Trek: The Next Generation episode "Sarek".[1] As depicted in the 2009 Star Trek movie, she dies when Vulcan is destroyed. Grayson was first portrayed by Jane Wyatt, who appears in both "Journey to Babel" and The Voyage Home. Majel Barrett provided the voice of Amanda in the Star Trek animated series. Cynthia Blaise played her in Star Trek V: The Final Frontier. In the 2009 Star Trek, the role of Amanda Grayson was played by Winona Ryder.[2]
Grilka (Memory Alpha article)	Mary Kay Adams (Memory Alpha article)	The House of Quark (DS9), Looking for par'Mach in All the Wrong Places (DS9)
Klingon female; briefly married to Quark after he was implicated in the murder of her previous husband, Kozak.
Gromek (Memory Alpha article)	Georgann Johnson (Memory Alpha article)	The Emissary (TNG)
Starfleet admiral in 2365 who advised Captain Jean-Luc Picard that a Federation special emissary would be joining the Enterprise-D from Starbase 153. Starfleet Command considered this a top-security matter, but she would not give Picard mission specifics over subspace radio, and told him to cooperate fully with the envoy. (Costuming Notes: [1] Gromek was not wearing a combadge. [2] Only she and Admiral Nakamura ["The Measure of a Man"] wore the Season 2 version of the Starfleet admiral's uniform.)

H

Character	Actor	Episodes
Description
Hacom (Memory Alpha article)	Morgan Farley (Memory Alpha article)	The Return of the Archons (TOS)
Native of Beta III. Hacom was loyal to the computer Landru that rigidly governed the planet's society
Hadley (Memory Alpha article)	William Blackburn (Memory Alpha article)	The Return of the Archons (TOS)
Starfleet lieutenant who is first seen in the first-season episode "The Naked Time" and appears in 62 original series episodes, plus archive footage used in Deep Space Nine's "Trials and Tribble-ations". Hadley regularly relieved Pavel Chekov or Hikaru Sulu.
Hanar (Memory Alpha article)	Stewart Moss (Memory Alpha article)	By Any Other Name (TOS)
A being from Kelva, of the Andromeda Galaxy, transformed into a pale, human male. A band of Kelvans seized the U.S.S. Enterprise. Unfamiliar with human feelings, an injection of formazine stimulant drove Hanar to distraction.
Hansen (Commander) (Memory Alpha article)	Garry Walberg (Memory Alpha article)	Balance of Terror (TOS)
Starfleet commander and last survivor of Earth Outpost 4 along the Romulan Neutral Zone. He lives long enough to give the Enterprise some tactical details on the Romulans' cloaking device and plasma weapon before Outpost 4 is obliterated by a Romulan Bird-of-Prey. Hansen wore no rank stripes on the sleeves of his uniform tunic.
Annika Hansen (Memory Alpha article)	Katelin Petersen (Memory Alpha article)	Scorpion (VOY), The Raven, (VOY) Dark Frontier, (VOY) The Voyager Conspiracy (VOY)
Daughter of Magnus and Erin Hansen, assimilated with her parents by the Borg in 2356. She is better known by her Borg designation, Seven of Nine.
Erin Hansen (Memory Alpha article)	Nikki Tyler (Memory Alpha article) Laura Stepp (Memory Alpha article)	Scorpion (VOY), The Raven (VOY), Dark Frontier (VOY), The Voyager Conspiracy (VOY)
Wife of Magnus Hansen, mother of Annika Hansen. Studied the Borg up close. Assimilated by the Borg in 2356 when they boarded the USS Raven
Irene Hansen (Memory Alpha article)	Lorinne Vozoff (Memory Alpha article)	Author, Author (VOY)
Sister of Magnus Hansen, aunt of Annika Hansen.
Magnus Hansen (Memory Alpha article)	David Anthony Marshall (Memory Alpha article) Kirk Baily (Memory Alpha article)	Scorpion (VOY), The Raven (VOY), Dark Frontier (VOY), The Voyager Conspiracy (VOY)
Husband of Erin Hansen, father of Annika Hansen. Studied the Borg up close. Assimilated by the Borg in 2356 when they boarded the USS Raven.
J.P. Hanson (Memory Alpha article)	George Murdock (Memory Alpha article)	The Best of Both Worlds, Part I (TNG), The Best of Both Worlds, Part II (TNG)
Starfleet vice admiral who was in charge of Starfleet Tactical's effort to develop weapons to combat the Borg. He was an old friend of Picard's and had observed him as a cadet winning the Starfleet marathon on Danula II. Hanson brought Lieutenant Commander Shelby aboard the Enterprise-D to investigate the Borg excision of the New Providence colony on Jouret IV. He encouraged Picard to consider Shelby as his new first officer, and to convince Will Riker to accept Starfleet's latest offer to command the U.S.S. Melbourne.
Harold (Memory Alpha article)	Tom Troupe (Memory Alpha article)	Arena (TOS)
Starfleet lieutenant junior grade and sole survivor of the Gorn massacre on Cestus III.
John Harriman (Memory Alpha article)	Alan Ruck (Memory Alpha article)	GEN
Captain of the USS Enterprise (NCC-1701-B) on its maiden voyage in 2293.
Sean Hawk (Memory Alpha article)	Neal McDonough (Memory Alpha article)	FCT
Starfleet lieutenant and flight controller (conn) on the USS Enterprise-E. While on a mission outside the ship, Hawk was assimilated by the Borg and subsequently killed by Worf. Tie-in novels (such as the Next Generation Section 31 novel, "Rogue") refer to his homosexual orientation and introduce his family and his life-partner.
Stephen Hawking	Stephen Hawking (Memory Alpha article)	Descent (TNG)
Holodeck character. The only instance in Star Trek where a person has played themself.
Dixon Hill (Memory Alpha article)	Patrick Stewart (Memory Alpha article)	The Big Goodbye (TNG) recurring thereafter
Fictional detective played by Jean-Luc Picard on the holodeck. The character is roughly based on fictional detective Sam Spade.
Homn (Memory Alpha article)	Carel Struycken (Memory Alpha article)	Haven (TNG) recurring thereafter
Valet to Lwaxana Troi, mother of Deanna Troi.
Felisa Howard (Memory Alpha article)	Ellen Albertini Dow (Memory Alpha article)	Sub Rosa (TNG)
Grandmother of Beverly Crusher, great-grandmother of Wesley Crusher
Hugh (Memory Alpha article)	Jonathan Del Arco (Memory Alpha article)	I, Borg (TNG), Descent, Part II (TNG)
Borg drone rescued by Beverly Crusher from a crashed ship in the Argolis Cluster, originally known as 'Third of Five'. Later assisted the Enterprise crew when he proclaimed himself leader of a rebel Borg group that sought to remove Lore from power in Borg society.

I

Character	Actor	Episodes
Description
I-Chaya (Memory Alpha article)		Yesteryear (TAS)
Spock's pet sehlat.
Icheb (Memory Alpha article)	Manu Intiraymi (Memory Alpha article) Mark Bennington (Memory Alpha article)	Collective (Voy) recurring thereafter
One of the four Borg children rescued from a Cube and raised by Seven of Nine
Ilia (Memory Alpha article)	Persis Khambatta (Memory Alpha article)	TMP
A female native of Delta IV, she was once involved in a romantic relationship with Willard Decker. As a Starfleet lieutenant, she was assigned to the Enterprise as navigator during the V'ger crisis. She was killed on the Bridge by one of V'ger's probes, but her appearance was later given to another V'ger probe, which was put aboard the Enterprise and assigned to learn about the human "infestation." However, this "Ilia probe" was constructed so perfectly by V'ger that it even contained the real Ilia's memories, which were deeply suppressed. Decker, however, was able to access those memories and establish a personal rapport with the probe. Later, when he learned that V'ger needed a "human element" to reveal its data – and, in so doing, stop its attack on Earth – he input the final code sequence manually, and, together with the Ilia probe, merged with V'ger. Ilia was later listed as "missing" in action.
Inad (Memory Alpha article)	Eve H. Brenner (Memory Alpha article)	Violations (TNG)
An Ullian telepathic historian, expert in memory retrieval. She helped Keiko O'Brien retrieve a childhood memory of her grandmother.
Ishka (Memory Alpha article)	Andrea Martin (Memory Alpha article) Cecily Adams (Memory Alpha article)	Family Business (DS9) recurring thereafter
Mother of Quark and Rom, who call her "Moogie," widow of Geldar. An unorthodox female, she flouted Ferengi law by wearing clothes and earning profit. Later married Grand Nagus Zek and influenced his reforms.

J

Character	Actor	Episodes
Description
Mark Jameson (Memory Alpha article)	Clayton Rohner (Memory Alpha article)	Too Short a Season (TNG)
Renowned Federation mediator who tried an unorthodox age-reversal treatment
Kathryn Janeway (Memory Alpha article)	Kate Mulgrew (Memory Alpha article)	VOY
Captain of the USS Voyager. She became the first Federation captain to successfully traverse the Delta Quadrant.
Jannar (Memory Alpha article)	Rick Worthy (Memory Alpha article)	The Xindi (ENT) recurring thereafter
Arboreal scientist and representative on the Xindi Council
Jarok, Alidar (Memory Alpha article)	James Sloyan (Memory Alpha article)	The Defector (TNG)
Romulan admiral who led the massacre against the Norkan Outposts (called the Norkan "Campaigns" on Romulus). Later, after he and his wife have a baby girl, Jarok becomes convinced that another war could destroy the Romulan Star Empire. However, the High Command tires of his protests, censures him and sends him off to command some distant sector. When Jarok learns of secret Romulan plans to launch an attack against the Federation from Nelvana III, he steals a scout ship and barely escapes across the Neutral Zone into Federation space, where he requests asylum aboard the Enterprise-D. He masquerades as Sublieutenant Setal, a logistics clerk, before revealing his true identity. He eventually convinces Picard to cross the Neutral Zone and investigate Nelvana III, but there's nothing there. The Romulan High Command duped Jarok with false intelligence to test his loyalty. Jarok, realizing that everything he's done was for nothing, commits suicide by ingesting a poisonous chip. However, he leaves a letter for his wife and daughter, which Picard hopes to deliver to Romulus one day.
Edward Jellico (Memory Alpha article)	Ronny Cox (Memory Alpha article)	Chain of Command (TNG)
Commanding officer of the U.S.S. Cairo, and temporarily the captain of the Enterprise-D while Jean-Luc Picard was engaged in an undercover mission on Celtris III, a Cardassian planet. Recurring character in New Frontier and other novels as Admiral Jellico.
Jeffrey (Memory Alpha article)	Glenn Harris (Memory Alpha article)	Real Life (VOY)
The Doctor's son in his holographic family program
Ma'Bor Jetrel (Memory Alpha article)	James Sloyan (Memory Alpha article)	Jetrel (VOY)
Haakonian male repented for engineering weapon that killed millions of Talaxians
Jeyal (Memory Alpha article)	Michael Ansara (Memory Alpha article)	The Muse (DS9)
Tavnian, briefly Lwaxana Troi's husband and father of one of her children
Cyrano Jones (Memory Alpha article)	Stanley Adams (Memory Alpha article)	The Trouble with Tribbles (TOS) More Tribbles, More Troubles (TAS)
Interstellar trader
Jono (Memory Alpha article)	Chad Allen (Memory Alpha article)	Suddenly Human (TNG)
Human born Jeremiah Rossa, adopted by Talarian Captain Endar in accordance with Talarian customs

K

Character	Actor	Episodes
Description
Kahless (Memory Alpha article)	Robert Herron (Memory Alpha article) Kevin Conway (Memory Alpha article)	The Savage Curtain (TOS), Rightful Heir (TNG), ’u’ (Klingon opera)
Legendary Klingon warrior and first emperor of the Klingon Empire; also known as "the Unforgettable" among his people. A clone created in 2369 was made ceremonial emperor by Gowron.
Kamala (Memory Alpha article)	Famke Janssen (Memory Alpha article)	The Perfect Mate (TNG)
An empathic metamorph from Krios Prime. Since her birth, she was intended to be Valtese Chancellor Alrik's Kriosian peace bride in an effort to reunite the two planets.
Kang (Memory Alpha article)	Michael Ansara (Memory Alpha article)	Day of the Dove (TOS), Blood Oath (DS9), Flashback (VOY)
Legendary Klingon warrior and Dahar Master whose exploits assured him a place in the Hall of Heroes, as told in G'Trok's poem "The Fall of Kang," an epic so important it is required reading at Starfleet Academy. Commander Kang once faced James Kirk in 2269, but later joined him to defeat their true enemy, an energy life form living off their shared hatred when trapped aboard the Enterprise as undying fodder. Captain Kang later squared off against Captain Sulu's U.S.S. Excelsior during the tensions preceding the Khitomer Conference in 2293. Kang had already met Curzon Dax by then on the Klingon Korvat colony, when Dax intentionally angered Kang to foster a bond—a calculated risk as he walked out during a long diatribe by the shocked Klingon. The Trill envoy became such a trusted family friend that Kang's firstborn, a boy, was made his godson and named "Dax" in his honor. The boy, of course, was among those later killed in revenge by the marauding Albino and fostered a blood oath of revenge in turn among Kor, Koloth and Dax that was finally carried out in 2370 and led to Dahar Master Kang's death as he struck the death blow on his enemy. He also had defeated T'nag and his army with only colleagues Kor and Koloth, according to Kor's tale in 2372, and later feasted on the leader's heart.
Kargan (Memory Alpha article)	Christopher Collins (Memory Alpha article)	A Matter of Honor (TNG)
Klingon captain of the I.K.S. Pagh in 2365. He was short, heavyset and demanded strict adherence to his authority. When he learned of the space organism eating away at a small section of the Pagh's hull, and that the Enterprise-D had directed an intense scanning beam at that specific area for two minutes, Kargan believed the Federation starship had landed a first strike against his vessel, so he vowed to attack and destroy the Enterprise-D. He suspected that Commander William T. Riker, his acting first officer, was complicit in the Enterprise-D's attack, so, to test his loyalty, Kargan demanded to know the surest method of attack against the Federation starship. When Riker refused to break his oath to Starfleet, Kargan relented, knowing at least that Riker wasn't a traitor or a coward. When Riker activated an emergency transponder given to him by Worf, Kargan, believing it was a weapon, demanded that Riker give it to him. Kargan was then beamed aboard the Enterprise-D, and Riker was able to assume command of the Pagh and defuse the brewing battle. Later, when Kargan was returned to the Pagh, Riker refused to resume his station, so Kargan slugged him and ordered him removed from the ship. That action allowed Kargan to save face and regain honor in the eyes of his officers, and very likely averted an assassination attempt by Lieutenant Klag.
Anton Karidian (Memory Alpha article)	Arnold Moss (Memory Alpha article)	The Conscience of the King (TOS)
A Shakespearian actor (and father of Lenore Karidian) once known as Kodos the Executioner, Governor of Tarsus IV
Lenore Karidian (Memory Alpha article)	Barbara Anderson (Memory Alpha article)	The Conscience of the King (TOS)
A Shakespearian actor (and daughter of Anton Karidian).
Karina (Memory Alpha article)	Annette Helde (Memory Alpha article)	Visionary (DS9)
Romulan officer who, in 2371, was part of a delegation to Starbase Deep Space 9 to study Starfleet Intelligence reports on the Dominion. The Romulans regarded the Dominion as the greatest threat to the Alpha Quadrant, and intended to destroy Deep Space 9 before collapsing the Bajoran Wormhole to prevent any Dominion incursion from the Gamma Quadrant.
Walker Keel (Memory Alpha article)	Jonathan Farwell (Memory Alpha article)	Conspiracy (TNG)
Starfleet captain and commanding officer of the U.S.S. Horatio who warned Picard about the alien invasion.
Edith Keeler (Memory Alpha article)	Joan Collins (Memory Alpha article)	The City on the Edge of Forever (TOS)
In 1930, during the first part of Earth's 20th Century, Keeler was a social worker who died in a street accident. Centuries later, during a survey of the Guardian of Forever by the U.S.S. Enterprise, the ship's Chief Medical Officer, Dr. Leonard McCoy, during a temporary bout of mental illness brought on by an accidental injection of cordrazine, escaped into Earth's past. While there, he saved Keeler from dying, which sparked a chain of events throughout the timeline, essentially changing history. In the altered timeline, Keeler, a passionate believer in peace, spearheaded a movement which delayed the entry of the United States into World War II, thus paving the way for an Axis victory. Ultimately, Starfleet, the Federation and the U.S.S. Enterprise were no longer in existence, but the proximity to the Guardian of Forever by the landing party allowed Captain James T. Kirk and First Officer Spock to follow McCoy into the past. Kirk and Spock were able to prevent McCoy from saving Keeler's life, thus restoring the timeline. These events were particularly stressful for Kirk, as he had fallen in love with Keeler.
Keevan (Memory Alpha article)	Christopher Shea (Memory Alpha article)	Rocks and Shoals (DS9), The Magnificent Ferengi (DS9)
A Vorta field commander who sacrificed his Jem'Hadar troops to save his own life. He was later killed by inept Ferengi as they tried to trade him back to the Dominion for Quark's mother.
Kell (Memory Alpha article)	Larry Dobkin (Memory Alpha article)	The Mind's Eye (TNG)
Klingon ambassador who accompanied the Enterprise-D to the planet Krios in 2367 to investigate Klingon governor Vagh's claim that Starfleet was supplying weapons to Kriosian rebels. Kell was colluding with the Romulans to disrupt the alliance between the Federation and the Klingon Empire. The Romulans had "conditioned" Geordi La Forge to receive E-band transmissions through his VISOR. Kell carried the transmitter that instructed La Forge to kill Governor Vagh, but the attempt failed. Kell was taken into custody by Vagh.
K'Ehleyr (Memory Alpha article)	Suzie Plakson (Memory Alpha article)	The Emissary (TNG), Reunion (TNG)
Worf's mate and Alexander Rozhenko's mother. Killed by Duras.
Captain Keogh (Memory Alpha article)	Alan Oppenheimer (Memory Alpha article)	The Jem'Hadar (DS9)
Commanding officer of the ill-fated U.S.S. Odyssey.
Kessick (Memory Alpha article)	Richard Lineback (Memory Alpha article)	The Xindi (ENT)
Xindi Primate, slave in a Trellium-D mine
Lenara Kahn (Memory Alpha article)	Susanna Thompson (Memory Alpha article)	Rejoined (DS9)
Trill woman hosting the Kahn symbiont, which, as Nilani Kahn in a former life, was married to Torias Dax.
Harry Kim (Memory Alpha article)	Garrett Wang (Memory Alpha article)	VOY
Ensign and operations officer aboard the USS Voyager during its seven years in the Delta Quadrant.
Kira Meru (Memory Alpha article)	Leslie Hope (Memory Alpha article)	Wrongs Darker than Death or Night (DS9)
Mother of Kira Nerys, was a comfort woman for Gul Dukat for seven years.
Kira Nerys (Memory Alpha article)	Nana Visitor (Memory Alpha article)	DS9
Bajoran Militia officer assigned as Benjamin Sisko's first officer on Starbase Deep Space 9.
Kira Taban (Memory Alpha article)	Thomas Kopache (Memory Alpha article)	Wrongs Darker than Death or Night (DS9), Ties of Blood and Water (DS9)
Father of Kira Nerys
Kira Pohl (Memory Alpha article)		Wrongs Darker than Death or Night (DS9)
Brother of Kira Nerys
Kira Reon (Memory Alpha article)		Wrongs Darker than Death or Night (DS9)
Brother of Kira Nerys
Aurelan Kirk (Memory Alpha article)	Joan Swift (Memory Alpha article)	Operation: Annihilate! (TOS)
Wife of George Samuel Kirk, mother of Peter Kirk, sister-in-law of James T. Kirk
George Kirk (Memory Alpha article)	Chris Hemsworth (Memory Alpha article)	ST
Father of James T. Kirk and George Samuel Kirk
George Samuel Kirk (Memory Alpha article)	William Shatner (Memory Alpha article)	Operation: Annihilate! (TOS)
Brother of James T. Kirk
James T. Kirk (Memory Alpha article)	William Shatner (Memory Alpha article) Chris Pine (Memory Alpha article)	TOS, TAS, TMP, WOK, SFS, TVH, TFF, TUC, GEN, ST
Captain of the USS Enterprise, major character in the original Star Trek and eight Star Trek movies
Peter Kirk (Memory Alpha article)	Craig Hundley (Memory Alpha article)	Operation: Annihilate! (TOS)
Son of George Samuel and Aurelan Kirk, nephew of James T. Kirk
Winona Kirk (Memory Alpha article)	Jennifer Morrison (Memory Alpha article)	ST
James T. Kirk's mother
K'Kath (Memory Alpha article)	Chad Haywood (Memory Alpha article)	Real Life (VOY)
Klingon friend of Jeffrey in the holographic family program modified by Torres.
Klaa (Memory Alpha article)	Todd Bryant (Memory Alpha article)	TFF
Young Klingon captain of a Bird-of-Prey. He is also the gunner, as the tactical scope is mounted above his command chair and lowers like a periscope when he wants to fire the ship's disruptors. He is bored with shooting space garbage, such as Earth's Pioneer 10 probe, and longs for a bigger challenge to make a name for himself. When he learns that the Enterprise-A and Captain James T. Kirk are headed to Nimbus III, he arranges to intercept them. Klaa shoots at but misses the Enterprise, which suddenly engages warp speed. He follows her to Sha Ka Ree and this time scores a hit. He orders the Enterprise to surrender, but General Koord calls him off and forces him to rescue Kirk from the surface of Sha Ka Ree. At a "cocktail party" aboard the Enterprise, he salutes Kirk as a fellow warrior. One of Klaa's more memorable features, besides his muscles, is his wild "shock rock" hair.[original research?] Noncanon: In the movie novelization, Klaa's Bird-of-Prey is called Okrona.
Klag (Memory Alpha article)	Brian Thompson (Memory Alpha article)	A Matter of Honor (TNG)
Klingon lieutenant and second officer of the I.K.S. Pagh in 2365. He challenged Commander William T. Riker's authority over him as first officer of the Pagh during an officer-exchange program. After Riker beat him up, Klag agreed to take his orders and even respected the commander for his strength. Klag's father had once been captured in battle by Romulans, but not allowed to die. He eventually escaped, and now lives on Qo'noS, honorless, waiting for death by natural causes. For that reason, Klag won't see him. When Captain Kargan suspected that Riker was complicit in the Enterprise-D's "attack" on the Pagh, Klag disagreed and defended the commander. (Script Note: Klag said, "A Klingon is his work, not his family. That is the way of things." This is untrue; in fact, it's rather the reverse, as the third-season episode "Sins of the Father" will begin to illustrate. A Klingon's house/family is basic to his or her very existence. Without one, he or she is nothing.)
Klingon Captain (Memory Alpha article)	K.L. Smith (Memory Alpha article)	Elaan of Troyius (TOS)
He commanded the Klingon warship that stalked the Enterprise through the Tellun Star System. After Kryton had sabotaged the Enterprise's warp engines, the Klingon demanded that Kirk surrender unconditionally and immediately.
Klingon Captain (Memory Alpha article)	Mark Lenard (Memory Alpha article)	TMP
He commanded three K't'inga-class battle cruisers in an attack against V'ger in Quad L-14. His flagship, the Imperial Klingon Cruiser Amar, was the last to be destroyed.
K'mpec (Memory Alpha article)	Charles Cooper (Memory Alpha article)	Sins of the Father (TNG), Reunion (TNG)
Klingon chancellor and supreme commander who oversaw Worf's discommendation. Later poisoned by Duras and succeeded by Gowron. In his time, K'mpec served as leader of the Klingon Empire longer than anyone previously.
K'mtar (Memory Alpha article)	James Sloyan (Memory Alpha article)	Firstborn (TNG)
The adult Alexander Rozhenko from a possible future.
K'nera (Memory Alpha article)	David Froman (Memory Alpha article)	Heart of Glory (TNG)
Klingon commander of a K't'inga-class battle cruiser that was patrolling the area of the Romulan Neutral Zone in 2364, seeking the whereabouts of the I.K.S. T'Acog. When he learned that the criminals Korris, Konmel and Kunivas had been rescued by the Enterprise-D, he plotted an intercept course and demanded that Captain Jean-Luc Picard turn them over when he arrived. By that time, however, all three Klingons had died from injuries or during escape attempts. (Script Note: Picard mistakenly called K'nera "captain" in one instance.) (Set Note: K'nera spoke from a private, darkened area of his ship that was unique because it bore the Great Seal of the United Federation of Planets and the Klingon trefoil symbol. This one-time-only display implied that the Federation/Klingon alliance was much more than a simple "mutual defense" pact or the like. It also explained why Klingons like Korris, Konmel and Kunivas felt that their birthright had been traded away for peace, and also spoke to Q's offhand comment in "Hide and Q" that the Federation had "defeated" the Klingons.)
Kodos (Memory Alpha article)	Arnold Moss (Memory Alpha article)	The Conscience of the King (TOS)
Governor of Tarsus IV, also known as "the Executioner," who engaged in a large-scale eugenics program to counter the impending threat of starvation to the colony; later assumed the role of actor Anton Karidian leading a traveling Shakespeare company called the "Karidian Players."
Kohlar (Memory Alpha article)	Wren T. Brown (Memory Alpha article)	Prophecy (VOY)
Klingon commander of a generational "sleeper starship" of the D7 class, leader of a group of Klingons who were looking for a kuva'magh, or "savior" of Klingon culture, for centuries. Kohlar and his followers are found to be infected with the Klingon nehret retrovirus disease by Voyager's holographic Doctor, which is cured with DNA from B'Elanna Torres' unborn daughter Miral Paris.
Kol (Memory Alpha article)	J.R. Quinonez (Memory Alpha article) Leslie Jordan (Memory Alpha article)	The Price (TNG), False Profits (VOY)
One of two Ferengi stranded in the Delta Quadrant after attempting to secure the Barzan wormhole for themselves. Crash-landing on the Takaran homeworld, they insinuated themselves to be the Holy Sages prophesied by the Takaran "Song of the Sages" in order to exploit the Takarans for profit.
Kolopak (Memory Alpha article)	Henry Darrow (Memory Alpha article)	Tattoo (VOY) Basics, Part 1 (VOY)
Father of Chakotay
Koloth (Memory Alpha article)	William Campbell (Memory Alpha article) James Doohan (Memory Alpha article)	The Trouble With Tribbles (TOS), More Tribbles, More Troubles (TAS), Blood Oath (DS9)
Klingon captain who faced Kirk twice over tribbles; later, as Dahar Master, he was allied with Kor, Kang and Curzon Dax in a blood oath to kill the Albino. Koloth was killed during the assault on the Albino's fortress. James Doohan voiced the character in the animated episode.
Sirna Kolrami (Memory Alpha article)	Roy Brocksmith (Memory Alpha article)	Peak Performance (TNG)
Zakdorn master strategist and consultant for war games between the Enterprise-D and the U.S.S. Hathaway.
Anastasia Komononov (Memory Alpha article)	Nana Visitor (Memory Alpha article)	Our Man Bashir (DS9)
A Russian spy in Bashir's secret agent program. Due to a transporter malfunction, Komononov's physical parameters were temporarily modelled on Kira.
Konmel (Memory Alpha article)	Charles H. Hyman (Memory Alpha article)	Heart of Glory (TNG)
Klingon lieutenant who, with Korris and Kunivas, left the Klingon Defense Force to pursue a life in which he could live like a "true Klingon." In 2364, the trio stole the Talarian freighter Batris and subsequently destroyed the I.K.S. T'Acog, which had been sent to retrieve them. After being rescued by the Enterprise-D, Korris and Konmel lied to Captain Jean-Luc Picard about the battle, but later revealed their true intentions to Lieutenant (j.g.) Worf. By then, Klingon commander K'nera had apprised Picard of the Klingons' criminal status, so Picard detained them in the brig. They escaped, but Konmel was killed in a firefight with Enterprise-D security. To his credit, though, it took three phaser shots to bring him down.
Konsab (Memory Alpha article)	None	Face of the Enemy (TNG)
Romulan commander and former instructor of military history at the Romulan Intelligence Academy. His main theme consisted of theories on the differences between the military and the Tal Shiar. He believed that military officers must trust one another in order to function. (The dialogue was unclear, but Konsab may have been Commander Toreth's father. She described him as an "idealistic old man" and a "devoted citizen who only tried to speak his mind." The Tal Shiar dragged him from his home in the middle of the night, and Toreth never saw him again.)
Koord (Memory Alpha article)	Charles Cooper (Memory Alpha article)	TFF
A fat Klingon general who fell out of favor with the High Command and ended up serving in the dishonorable role of Klingon consul to the "Planet of Galactic Peace," Nimbus III. In his younger, leaner days, Koord was such a notable soldier that his military strategies were required reading at Starfleet Academy. On Nimbus III, he and his Federation and Romulan counterparts, St. John Talbot and Caithlin Dar, were taken hostage by Sybok's "Galactic Army of Light." Later, Spock convinced Koord to use his authority and order Captain Klaa to destroy the alien creature on Sha Ka Ree and transport Captain Kirk to safety.
Kor (Memory Alpha article)	John Colicos (Memory Alpha article) James Doohan (Memory Alpha article)	Errand of Mercy (TOS), The Time Trap (TAS), Blood Oath (DS9), The Sword of Kahless DS9, Once More Unto the Breach (DS9)
The first Klingon to appear in Star Trek, as an antagonist to Kirk. Commander Kor briefly ruled the planet Organia as its military governor. A few years later, Captain Kor's ship, the I.K.S. Klothos, was lost in the Delta Triangle, but later escaped with help from the Enterprise. John Colicos reprised the role in three Deep Space Nine episodes, as an ally and friend of Jadzia and Ezri Dax. Dahar Master Kor was killed in glorious battle by acting as a decoy to hold off the Jem'Hadar while the rest of the Klingon fleet escapes ("Once More Unto the Breach"). James Doohan voiced the character in the animated episode.
Korax (Memory Alpha article)	Michael Pataki (Memory Alpha article)	The Trouble With Tribbles (TOS)
Klingon first officer of the I.K.S. Gro'th under Captain Koloth. He instigates the bar fight on Deep Space Station K-7 by taunting Mr. Scott, first calling Captain Kirk a "tin-plated dictator with delusions of godhood," then calling the Enterprise a "sagging old rust bucket that's designed like a garbage scow." However, when he says that the Enterprise should be hauled away as garbage, Scotty throws the first punch.
Korris (Memory Alpha article)	Vaughn Armstrong (Memory Alpha article)	Heart of Glory (TNG)
Klingon captain who, with Konmel and Kunivas, left the Klingon Defense Force to pursue a life in which he could live like a "true Klingon." In 2364, the trio stole the Talarian freighter Batris and subsequently destroyed the I.K.S. T'Acog, which had been sent to retrieve them. After being rescued by the Enterprise-D, Korris and Konmel lied to Captain Jean-Luc Picard about the battle, but later revealed their true intentions to Lieutenant (j.g.) Worf. By then, Klingon commander K'nera had apprised Picard of the Klingons' criminal status, so Picard detained them in the brig. They escaped, but Konmel was killed in the process. Korris fled to Main Engineering and held a makeshift phaser to the warp core, demanding to speak to Worf. His attempt to sway Worf to his cause failed, however, and Worf shot him dead. (Script Note: Picard mistakenly called Korris "commander" in one instance.)
Koss (Memory Alpha article)	Michael Reilly Burke (Memory Alpha article)	Breaking the Ice (ENT) recurring thereafter
Vulcan architect. T'Pol deferred her long-arranged marriage to Koss in order to continue her assignment aboard Enterprise (NX-01). They finally wed three years later, but Koss dissolved the marriage.
Koval (Memory Alpha article)	John Fleck (Memory Alpha article)	Inter Arma Enim Silent Leges (DS9)
Romulan chairman of the Tal Shiar in 2375. He had not been elevated to the Continuing Committee of the Romulan People, which is normally accorded to a person in his position, because of his opposition to the Romulan alliance with the Federation, which was supported by a majority on the committee. He was rumored to be ill with Tuvan Syndrome, which may have been another reason why he had not been elevated to the Continuing Committee. Secretly, Koval had been providing critical military intelligence to the Federation for more than a year. He was Vice Admiral William J. Ross' guarantee that the Romulans would not make a deal with the Dominion.
Kozak (Memory Alpha article)	John Lendale Bennett (Memory Alpha article)	The House of Quark (DS9)
Klingon who accidentally died at Quark's bar. The financial assets of his House were being siphoned off by the Duras family by using Ferengi-like tactics.
Kras (Memory Alpha article)	Tige Andrews (Memory Alpha article)	Friday's Child (TOS)
A Klingon agent who was sent to negotiate mining rights to the rare mineral topaline on Capella IV. He threw in his lot with Maab, a Capellan warrior who soon led a coup against the High Teer, Akaar, and became the new leader of the 10 Tribes of Capella. After following Maab's war party into the mountains in pursuit of Kirk, Spock, McCoy and Eleen, the widow of Akaar, Kras captured Eleen with a Starfleet hand phaser to force her to prove that she'd killed the Enterprise landing party. Maab drew out Kras by making himself a target. When Kras vaporized Maab, another Capellan warrior, Keel, killed Kras with a kligat. Production Notes: Although the name "Kras" comes from the shooting script, the character is never referred to as anything other than "Klingon." In addition, Kras was the first "white skinned" Klingon to appear, as opposed to the traditionally dark complexions sported by Kor and Kang.
Krell (Memory Alpha article)	Ned Romero (Memory Alpha article)	A Private Little War (TOS)
A Klingon agent who was sent to the planet Neural to upset the balance of power between the Villagers and the Hill People. He did this by supplying the Villagers with flintlocks, and every so often, he'd return to provide "improvements" to Apella, leader of the Villagers. Krell also dispensed advice to Apella on how to deal with special situations, such as which Villager should be given a captured woman of the Hill People. With such teachings, Krell promised Apella a governorship in the Klingon Empire. When Kirk and McCoy discovered the flintlock "factory," Krell got himself punched out by the Enterprise captain and was heard from no more.
Kruge (Memory Alpha article)	Christopher Lloyd (Memory Alpha article)	SFS
Klingon commander of a Bird-of-Prey. His crew address him as "my lord." He receives a stolen summary of Project Genesis from Valkris and decides to act for the preservation of his race. He goes to the Genesis Planet to learn the secret of the Genesis torpedo and secure for himself the "ultimate power." His gunner accidentally destroys the Federation science Starship Grissom, but Torg finds survivors on the surface. When the Enterprise arrives and scores a successful hit on Kruge's ship, he accepts Admiral Kirk's hail and threatens to execute one of the "hostages" on Genesis. That hostage ends up being Kirk's son, David Marcus, and in retribution, Kirk destroys the Enterprise while the bulk of Kruge's crew is aboard, intending to commandeer the starship. Later, Kirk and Kruge fight to the death on Genesis while the planet burns around them. Kruge is the loser.
K'Temoc (Memory Alpha article)	Lance LeGault (Memory Alpha article)	The Emissary (TNG)
Klingon captain of the I.K.S. T'Ong, a K't'inga-class battle cruiser that was dispatched before 2290, when the Federation and the Klingon Empire were still exchanging hostilities. K'Temoc's mission was so crucial to the Klingon High Command that he and his crew were placed in cryogenic sleep for more than 75 years. In 2365, the Klingon High Command received an automated message from the T'Ong stating that it was returning home and was about to reach its "awakening point." K'Temoc had been given standing orders to fire on all Federation ships, which he carried out on encountering the Enterprise-D. However, he was tricked into lowering his shields and yielding command of the T'Ong to "Captain" Worf and "Commander" K'Ehleyr, who convinced K'Temoc that the "war" was over.
Kurn (Memory Alpha article)	Tony Todd (Memory Alpha article)	Sins of the Father (TNG) recurring thereafter, Sons of Mogh (DS9)
Younger brother of Worf and also a son of Mogh who was not on Khitomer when the Klingon colony was destroyed by the Romulans. Years later, as a member of the Klingon Defense Force, Commander Kurn participated in an officer-exchange program with Starfleet that landed him aboard the U.S.S. Enterprise-D and reunited him with Worf ("Sins of the Father"). More than a year later, Captain Kurn commands his own K'Vort-class bird-of-prey and sides with Gowron during the Klingon Civil War ("Redemption II"). More than four years later, a ruined Kurn appears on Starbase Deep Space 9 ("The Sons of Mogh") and asks Worf to kill him to restore his honor, which, along with his seat on the Klingon High Council and the House of Mogh's most valuable possessions, were stripped from him because Worf fought against Gowron during the chancellor's takeover of Cardassia Prime ("The Way of the Warrior").
Kunivas (Memory Alpha article)	Robert Bauer (Memory Alpha article)	Heart of Glory (TNG)
Klingon officer who, with Korris and Konmel, left the Klingon Defense Force to pursue a life in which he could live like a "true Klingon." In 2364, the trio stole the Talarian freighter Batris and subsequently destroyed the I.K.S. T'Acog, which had been sent to retrieve them. Kunivas was critically injured in the battle and later died in the Enterprise-D sickbay.
Kuvak (Memory Alpha article)	John Rubinstein (Memory Alpha article)	Awakening (ENT), Kir'Shara (ENT)
Vulcan minister on the Vulcan High Command in 2154. He opposed the radicalism of Administrator V'Las and eventually shot (stunned) him to stop a space battle between the Vulcan and Andorian fleets.
Kyle (Memory Alpha article)	John Winston (Memory Alpha article)	Tomorrow is Yesterday (TOS) recurring thereafter, Beyond the Farthest Star (TAS) recurring thereafter, WOK
Lieutenant Kyle first appears in the first-season episode "Tomorrow Is Yesterday" and appears in 11 Star Trek episodes and seven animated episodes. In Star Trek II: The Wrath of Khan, Commander Kyle is the communications officer aboard the U.S.S. Reliant. In TOS, Kyle commonly appeared at the transporter controls. He was also seen as a helmsman (in a gold tunic) in "The Immunity Syndrome" and as a science specialist in "Who Mourns for Adonais?"

L

Character	Actor	Episodes
Description
Edward La Forge (Memory Alpha article)	Ben Vereen (Memory Alpha article)	Interface (TNG)
Starfleet commander and father of Geordi La Forge. He's a Ph.D. exozoologist.
Geordi La Forge (Memory Alpha article)	LeVar Burton (Memory Alpha article)	TNG, Timeless (Voy), Gen, FCT, Ins, Nem
Chief engineer of the Enterprise-D, captain of the Galaxy-class USS Challenger in an alternate future.
Silva La Forge (Memory Alpha article)	Madge Sinclair (Memory Alpha article)	Imaginary Friend (TNG), Interface (TNG)
Starfleet captain and mother of Geordi La Forge. She commanded the USS Hera NCC-62006, which disappeared without a trace. The life forms of Moriginy VII use her appearance to communicate with Geordi, who helps return them to the atmosphere where they live.
Lal (Memory Alpha article)	Hallie Todd (Memory Alpha article)	The Offspring (TNG)
Daughter of Data
Natima Lang (Memory Alpha article)	Mary Crosby (Memory Alpha article)	Profit and Loss (DS9)
Cardassian radical, the love of Quark's life
Larg (Hologram) (Memory Alpha article)	Stephen Ralston (Memory Alpha article)	Real Life (VOY)
Klingon friend of Jeffrey in the holographic family program modified by Torres.
Larg (Captain) (Memory Alpha article)	Michael G. Hagerty (Memory Alpha article)	Redemption II (TNG)
Klingon captain who supports the House of Duras' claim to the chancellorship during the Klingon Civil War of 2367–2368. Although he and Captain Kurn fight on opposite sides, they drink together in the First City on Qo'noS after battle.
Sam Lavelle (Memory Alpha article)	Dan Gauthier (Memory Alpha article)	Lower Decks (TNG)
Ensign and flight controller aboard the Enterprise-D. He is Canadian by heritage. He tests for the operations manager (ops) position on the Bridge, but believes that his friend, Ensign Sito Jaxa, is more qualified. After Sito is suddenly killed during a secret mission, Lavelle is promoted to lieutenant junior grade and wins the assignment to ops.
Leeta (Memory Alpha article)	Chase Masterson (Memory Alpha article)	Explorers (DS9) recurring thereafter
Bajoran woman employed as a Dabo girl in Quark's bar on DS9. She married Rom after a brief romance with Julian Bashir.
Robin Lefler (Memory Alpha article)	Ashley Judd (Memory Alpha article)	Darmok (TNG), The Game (TNG)
Ensign aboard the Enterprise-D (engineering section) and friend of Wesley Crusher. Major character in Star Trek: New Frontier spinoff novels and in fan film project Star Trek: Hidden Frontier
Leslie (Memory Alpha article)	Eddie Paskey (Memory Alpha article)	TOS
Lieutenant Leslie first appears in the Star Trek pilot "Where No Man Has Gone Before" and then in 56 of the original series episodes. He wears many hats aboard the Enterprise, from security officer to relief helmsman to manning the bridge engineering station. Although he was killed in the second season episode "Obsession", he was apparently revived, and went on to appear in several subsequent episodes.[3]
Janice Lester (Memory Alpha article)	Sandra Smith (Memory Alpha article)	Turnabout Intruder (TOS)
Former lover of Kirk, temporarily swapped bodies with him.
Li Nalas (Memory Alpha article)	Richard Beymer (Memory Alpha article)	The Homecoming (DS9)
Bajoran resistance fighter who became a hero of mythological proportions after unwittingly killing a Cardassian
Linnis (Memory Alpha article)	Jessica Collins (Memory Alpha article)	Before and After (VOY)
Daughter of Tom Paris and Kes, and mother of Andrew, in an alternate timeline.
Nick Locarno (Memory Alpha article)	Robert Duncan McNeill (Memory Alpha article)	The First Duty (TNG)
Classmate of Wesley Crusher's at Starfleet Academy.
Locutus (Memory Alpha article)	Patrick Stewart (Memory Alpha article)	The Best of Both Worlds (TNG), Emissary (DS9), FCT
Drone within the Borg Collective made using the body of Captain Picard
Lore (Memory Alpha article)	Brent Spiner (Memory Alpha article)	Datalore (TNG), Brothers (TNG), Descent (TNG)
"Evil brother" of Data
Lori Ciana (Memory Alpha article)	Susan J. Sullivan (Memory Alpha article)	TMP
Starfleet officer who was killed during a transporter malfunction while beaming up to the Enterprise. Commander Sonak died in the same accident. Noncanon:(?) In the TMP novelization by Gene Roddenberry, Ciana was a vice admiral and part of Commanding Admiral Nogura's inner staff. Her assignment was as xenopsychologist to nonhuman species in Starfleet Command, and she also served as Nogura's personal representative to the "new human" groups on Earth. She was a last-minute addition to the Enterprise crew, which needed an officer trained in her xenopsychiatric specialty. Her death was a terrific blow to James T. Kirk, with whom she had lived for one year after the Enterprise's five-year mission.
Loskene (Memory Alpha article)	Voice: Barbara Babcock (Memory Alpha article)	The Tholian Web (TOS)
Tholian commander who catches the Enterprise "trespassing in a territorial annex of the Tholian Assembly," where the U.S.S. Defiant NCC-1764 disappeared into an area of spatial interphase. Loskene agrees to wait for 1 hour and 53 minutes while the Enterprise effects rescue operations. However, when that time elapses, he attacks the Enterprise and later joins with another Tholian ship to create an "energy web" around the Federation starship.
Lovok (Memory Alpha article)	Leland Orser (Memory Alpha article)	The Die Is Cast (DS9)
A Founder disguised as a Romulan Tal Shiar colonel in 2371. He was in command of Enabran Tain's flagship Warbird. When the Obsidian Order and the Tal Shiar began their attack on the Founders' homeworld, Lovok gave Odo and Elim Garak access to their Runabout to escape, because "no changeling has ever harmed another." He offered Odo the chance to go with him and become one with the Greak Link, but Odo declined. Lovok was beamed away by a Jem'Hadar transporter.
Phillipa Louvois (Memory Alpha article)	Amanda McBroom (Memory Alpha article)	The Measure of a Man (TNG)
Starfleet captain and Judge Advocate General at Starbase 173. She prosecuted Captain Jean-Luc Picard after the loss of the U.S.S. Stargazer NCC-2893.
Lumba (Memory Alpha article)	Armin Shimerman (Memory Alpha article)	Profit and Lace (DS9)
Quark's alias while a temporary Ferengi female
Lursa (Memory Alpha article)	Barbara March (Memory Alpha article)	Redemption (TNG) recurring thereafter GEN
One of the sisters of Duras
Lutan (Memory Alpha article)	Jessie Lawrence Ferguson (Memory Alpha article)	Code of Honor (TNG)
Planetary ruler who became enamored of Tasha Yar

M

Character	Actor	Episodes
Description
Kieran MacDuff (Memory Alpha article)	Erich Anderson (Memory Alpha article)	Conundrum (TNG)
A Satarran operative who effected mass-amnesia against the Enterprise-D crew, infiltrated the ship and posed as first officer. His objective was to use the starship's powerful weapons to attack his people's enemy, the Lysian Alliance, and completely destroy them. His plan is foiled when Worf refuses to fire the killing blow against the Lysians' Central Command station.
Mallora (Memory Alpha article)	Tucker Smallwood (Memory Alpha article)	The Xindi (ENT) recurring thereafter
Black Primate representative on the Xindi Council, friend of Degra; became an ally to the humans
Maltz (Memory Alpha article)	John Larroquette (Memory Alpha article)	SFS
Klingon officer who remains aboard his Bird-of-Prey while Commander Kruge beams down to the Genesis Planet to wrest its secrets from Admiral Kirk. Maltz beams up the rest of the former Enterprise's crew while Kirk and Kruge fight to the death. Kirk, victorious, tricks Maltz into beaming him (and Spock) aboard before the Genesis Planet destroys itself. Kirk enters the Bridge and takes Maltz prisoner at phaser-point, promising to "kill" him later for not piloting the Bird-of-Prey away from Genesis. Maltz may have been Kruge's tactical officer, as he counted down the kellicams before the Bird-of-Prey came within firing range of the Enterprise.
Mara (Memory Alpha article)	Susan Howard (Memory Alpha article)	Day of the Dove (TOS)
Klingon science officer and wife of Kang. She is evacuated from his wrecked ship to the Enterprise and fears for how all Klingon survivors will be treated at Federation hands. Her concerns seem to be well-founded when Pavel Chekov kills her bodyguard and then attacks her. Kirk and Spock rescue her, and then show her firsthand evidence of the alien "entity" that has invaded the Enterprise and pitted Starfleet officers and Klingons against each other. She explains to Kirk that her people are hunters because there are poor planets in the Klingon system, and they must push outward to survive. She brokers a meeting between Kang and Kirk, which eventually leads to a truce. With "good spirits" from both parties, the alien entity flees the Enterprise.
Marayna (Memory Alpha article)	Sandra Nelson (Memory Alpha article)	Alter Ego (VOY)
Operator of a station inside an inversion nebula. When Voyager passed by, she created a human version of herself in Neelix's holographic resort program
Kila Marr (Memory Alpha article)	Ellen Geer (Memory Alpha article)	Silicon Avatar (TNG)
Xenologist dedicated to the study of the Crystalline Entity. After the entity destroyed all life on the Omicron Theta science colony, including her son, in 2338 she became obsessed. When the Enterprise-D encountered the entity in the episode Silicon Avatar in the year 2368 she shattered it with high intensity energy waves.
Carol Marcus (Memory Alpha article)	Bibi Besch (Memory Alpha article)	WOK
Inventor of the Genesis Device, mother of Kirk's only known son
David Marcus (Memory Alpha article)	Merritt Butrick (Memory Alpha article)	WOK, SFS
Son of James T. Kirk and Carol Marcus. Worked on developing the Genesis Device. Killed by Klingons on the Genesis Planet.
Mardah (Memory Alpha article)	Jill Sayre (Memory Alpha article)	The Abandoned (DS9)
Bajoran Dabo girl dated by Jake Sisko, mentioned in various episodes.
Aamin Marritza (Memory Alpha article)	Harris Yulin (Memory Alpha article)	Duet (DS9)
Impersonated Gul Darhe'el to atone for Cardassian war crimes
Angela Martine (Memory Alpha article)	Barbara Baldavin (Memory Alpha article)	Balance of Terror (TOS), Shore Leave (TOS), Turnabout Intruder (TOS)
Martine first appears in "Balance of Terror" as a fire control specialist. Her wedding to Lieutenant Robert Tomlinson is postponed when the Enterprise receives a distress call from outposts being attacked by Romulans. The character later appears in "Shore Leave" as part of the landing party, and again in the series final episode, "Turnabout Intruder".
Martis (Memory Alpha article)	Rachael Harris (Memory Alpha article)	Before and After (VOY)
Mother of Kes, wife of Benaren.
Martok (Memory Alpha article)	J.G. Hertzler (Memory Alpha article)	The Way of the Warrior (DS9), recurring thereafter
Klingon general; recurring character in Deep Space Nine
Martus Mazur (Memory Alpha article)	Chris Sarandon (Memory Alpha article)	Rivals (DS9)
El-Aurian who promoted gambling device that turned out to have strange effects on quantum probability
Dr. M'Benga (Memory Alpha article)	Booker Bradshaw (Memory Alpha article)	A Private Little War (TOS) recurring thereafter
M'Benga, a doctor aboard the USS Enterprise, first appears in "A Private Little War" and again in "That Which Survives". The character interned on Vulcan, and is skilled at treating Vulcans.
Marla McGivers (Memory Alpha article)	Madlyn Rhue (Memory Alpha article)	Space Seed (TOS)
Cohabitated with Khan Noonien Singh
Mendak (Memory Alpha article)	Alan Scarfe (Memory Alpha article)	Data's Day (TNG)
Romulan admiral who commands two Warbirds. His flagship, the I.R.W. Devoras, "rescues" Subcommander Selok after her long masquerade within the Federation as Vulcan ambassador T'Pel. When Picard pursues the matter of T'Pel's "death" in a transporter accident, Mendak menacingly warns him to drop it before another "accident" happens.
Jose I. Mendez (Memory Alpha article)	Malachi Throne (Memory Alpha article)	The Menagerie (TOS)
Starfleet commodore assigned to Starbase 11. Although he wears a gold tunic, he is never explicitly identified as base commander. However, it's possible he may be the head of Starbase Operations. He certified Kirk to read the "eyes only" Starfleet Command account of the first Earth ship (the Enterprise) to visit Talos IV, which spawned General Order 7 and forbade any further contact with the planet and its inhabitants – on penalty of death. When Spock steals the Enterprise and heads for the Talos Star Group, Kirk and Mendez pursue in the Shuttlecraft Picasso … except that Mendez really isn't there at all, or later aboard the Enterprise during the court-martial of Spock. In reality, it was the Keeper of Talos IV who created the illusion of Mendez, while the real commodore remained behind on Starbase 11. In the end, the "real" Mendez suspends General Order 7 on that occasion, thus saving the lives of everyone aboard the Enterprise.
Ki Mendrossen (Memory Alpha article)	William Denis (Memory Alpha article)	Sarek (TNG)
Assistant to Ambassador Sarek for the Legaran negotiations
Mila (Memory Alpha article)	Julianna McCarthy (Memory Alpha article)	Improbable Cause (DS9), The Dogs of War (DS9), What You Leave Behind (DS9)
Enabran Tain's housekeeper, mother of Elim Garak
Minuet (Memory Alpha article)	Carolyn McCormick (Memory Alpha article)	11001001 (TNG) recurring thereafter
Riker's holodeck fantasy woman, created by the Bynars and reproduced by Barash
Korenna Mirell (Memory Alpha article)	Eve H. Brenner (Memory Alpha article)	Remember (VOY)
Enaran woman in a star-crossed romance with a primitive regressive. She eventually passed on the memories of the genocide of the regressives to B'Elanna Torres.
Miri (Memory Alpha article)	Kim Darby (Memory Alpha article)	Miri (TOS)
Human encountered by Kirk's Enterprise, apparently a young girl, but actually a survivor from an ancient virus.
Mirok (Memory Alpha article)	Thomas Kopache (Memory Alpha article)	The Next Phase (TNG)
Romulan science officer who was working on a new "interphase generator" when a serious accident crippled his ship. The Enterprise-D responds to his distress signal and assists in constructing a new engine core for the Romulan ship, but Mirok plans on destroying the Enterprise with a muon feedback wave because Data stumbles onto his interphase experiment.
Gary Mitchell (Memory Alpha article)	Gary Lockwood (Memory Alpha article)	Where No Man Has Gone Before (TOS) Star Trek: Of Gods and Men (mini-series)
Starfleet lieutenant commander and ship's navigator. He and James T. Kirk have been friends since he joined the service, and Kirk asked for Mitchell aboard his first command. At Starfleet Academy, he remembers "Lieutenant" Kirk as being "a stack of books with legs," and that "in his class, you either think or sink." Mitchell also "aimed a little blonde lab technician" at Kirk, who almost married her. Later, on the planet Dimorus, Mitchell almost died from a poisoned dart thrown by "rodent things" who were aiming for Kirk. In 2265 aboard the Enterprise, Mitchell is "zapped" by the Galactic Barrier, which turns his eyes glowing silver and grants him enhanced ESP powers. As he grows stronger, he becomes a danger to the ship and crew, so Kirk is forced to maroon him on the planet Delta Vega. Mitchell doesn't go quietly, however, and Kirk is forced to kill him on the planet's surface.
Mogh (Memory Alpha article)	None	Sins of the Father (TNG)
Father of Worf and Kurn. Accused by Duras of betraying the Klingon colony on Khitomer to the Romulans, when in fact the betrayal was committed by Duras' father. Worf nevertheless accepted discommendation for his father's crime to prevent a scandal.
Mora Pol (Memory Alpha article)	James Sloyan (Memory Alpha article)	The Begotten (DS9), The Alternate (DS9)
Doctor at the Bajoran Center for Science, who was assigned to study the Changeling who would become known as Odo.
James Moriarty (Memory Alpha article)	Daniel Davis (Memory Alpha article)	Elementary, Dear Data (TNG) Ship in a Bottle (TNG)
Character created by Arthur Conan Doyle, becomes sentient in the holodeck.
Morka (Memory Alpha article)	Ray Young (Memory Alpha article)	Visionary (DS9)
Klingon officer and one of three members of a covert strike force conducting surveillance of the Romulan delegation to Starbase Deep Space 9 in 2371. After Morka is caught and detained in the brig, he promises that his family will kill Odo for treating him so dishonorably.
Morn (Memory Alpha article)	Mark Allen Shepherd (Memory Alpha article)	Emissary (DS9) recurring thereafter Birthright, Part 1 (TNG), Caretaker, Part 1 (VOY)
Regular at Quark's bar, known around the station for talking people's ears off, but never seen talking on screen.
Morrow (Memory Alpha article)	Robert Hooks (Memory Alpha article)	SFS
Starfleet admiral who was designated the "Starfleet Commander" in 2285. He boarded the Enterprise for inspection on her return to Spacedock. He awarded Starfleet's highest commendations to the entire crew for their extraordinary service during the battle with Khan. He also promoted Scotty to "captain of engineering" and reassigned him to the USS Excelsior NX-2000. In addition, he announced that the Enterprise would be decommissioned, thereby denying Kirk the opportunity to take her back to the Genesis Planet. Later, when Kirk pressed the issue and explained that Spock's katra must be reunited with his body, Morrow cautioned him against "intellectual chaos" and implored him to remain rational, lest he lose everything and destroy himself. (Noncanon: In the movie novelization, Morrow's first name is "Harry.")
Crell Moset (Memory Alpha article)	David Clennon (Memory Alpha article)	Nothing Human (VOY)
Cardassian doctor, cured the Fostossa virus by experimenting on Bajorans. When B'Elanna Torres was invaded by a cytoplasmic lifeform, the Voyager EMH was assisted by a holographic reproduction of Dr. Moset, and the procedure was a success. But because Maquis crewmembers objected to Dr. Moset, the EMH decided to delete the program.
Mot (Memory Alpha article)	Shelly Desai (Memory Alpha article) Ken Thorley (Memory Alpha article)	Ensign Ro (TNG), Schisms (TNG)
Talkative Bolian, barber on the USS Enterprise-D. Mentioned in other episodes; Captain Picard pretended to be him in Starship Mine.
Movar (Memory Alpha article)	Nicholas Kepros (Memory Alpha article)	Redemption I (TNG), Redemption II (TNG)
Romulan general who works with Commander Sela in supporting the House of Duras during the Klingon Civil War.
M'Pella (Memory Alpha article)	Cathy Debuono (Memory Alpha article)	"Behind the Lines" (DS9) recurring thereafter
Dabo girl seen working in Quark's bar in many episodes.
M'ret (Memory Alpha article)		Face of the Enemy (TNG)
Romulan vice proconsul of the Imperial Senate until 2369. He had questioned the repressive activities of the government and was in danger of being imprisoned. He and his two top aides were willing to risk defecting to the Federation to protest Romulan policy and support the dissident movement on Romulus. They were placed in stasis, smuggled aboard the I.R.W. Khazara and secretly transported onto the Enterprise-D. M'ret's defection was a profound blow to Romulus.
Harry Mudd (Memory Alpha article)	Roger C. Carmel (Memory Alpha article)	Mudd's Women (TOS), I, Mudd (TOS), Mudd's Passion (TAS)
A confidence trickster and the only non-crew character to be featured in more than one episode of the original series. According to editorial comments in the early DC Comics run of Star Trek: The Next Generation, an episode of TNG was to feature Mudd, awakening from cryogenic suspension to find himself aboard the Enterprise-D. After Roger C. Carmel's death, the episode was heavily rewritten and eventually became "The Neutral Zone", with the character of Mudd being replaced by 20th-century businessman Ralph Offenhouse (played by Peter Mark Richman).
Anne Mulhall (Memory Alpha article)	Diana Muldaur (Memory Alpha article)	Return to Tomorrow (TOS)
Starfleet lieutenant commander with a Ph.D. in astrobiology. Her uniform color is inexplicably red when it should be blue. Mulhall has the distinction of being the highest-ranking female Starfleet officer in TOS. Sargon makes her part of the landing party to his planet, and she later hosts the mind of Sargon's wife, Thalassa, for the purpose of creating android bodies into which Sargon, Thalassa and Henoch will transfer their consciousnesses.

References

1. ^ ^{a b} Okuda, Michael; Denise Okuda (1996). Star Trek Chronology: The History of the Future. Pocket Books. ISBN 0-671-53610-9. 
2. ^ Winona Ryder Boards Star Trek. ComingSoon.net
3. ^ Memory Alpha: Obsession (Episode)

See also

• List of Star Trek characters A–F • N–S • T–Z
• List of recurring characters in Star Trek: Deep Space Nine • Enterprise • The Next Generation • The Original Series • Voyager
• List of Star Trek episodes