Volcanus

From Wikitrix

Volcanus is a Detrovite (the same species as Technorg) who partners up with Sixsix in order to build a weapon capable of destroying a solar system. Unlike Technorg, he isn't enhanced in any way. He is stopped by Ben and the Galactic Enforcers. Volcanus appears in the episode "The Galactic Enforcers".

He reappears in Ben's dream world in "Perfect Day" working alongside Sixsix again.

Volcanus also appears in "Ken 10" this the episode Ben places him in him the Null Void.