Metallus

Metallus is a villain in the original Space Ghost and Dino Boy Hanna-Barbera television cartoon series, a nemesis of Space Ghost. He was presented as a robotic being, having command over vast numbers of robots, almost always in the form of nonhumanoid mechanisms.

Of the opponents of Space Ghost, Metallus was the most technologically oriented. He was the only villain to solve the invisibility mechanism that Space Ghost and his cohorts Jan, Jayce, and Blip used.

Metallus only appeared in a few episodes, not counting the Council of Doom episodes that provided some crossover with characters from other Hanna-Barbera catroons.