R. J. Herrera

Ralph J. (R.J.) Herrera is a heavy metal drummer. He is best known for being the drummer of Suicidal Tendencies between the years of 1984 and 1991. After Suicidal Tendencies, he joined Uncle Slam, a crossover thrash band featuring ex-Suicidal members. While in Suicidal he used double bass drum kits, a feature often associated with metal music as opposed to the hardcore punk Suicidal was associated with when he joined. Herrera, along with Rocky George and Mike Clark, was largely responsible for the bands transition to thrash metal. He left in 1991 due to unspecified personal differences, but was thanked in the sleeve of the band's next album "The Art of Rebellion" for "8 outstanding years".

He seemed to have had a very cheery and happy appearance and was frequently pictured smiling, which made him somewhat popular with Suicidal fans. He is not related to Fear Factory's drummer Raymond Herrera, despite the fact that they have the same last name and are both from southern California.