Vulkanus 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. Vulkanus appears in the episode "The Galactic Enforcers (episode)".
He reappears in Ben's dream world in "Perfect Day" working alongside Sixsix again.
Vulkanus also appears in "Ken 10". This the episode Ben places him in him the Null Void.
Vulkanus has made three appearances in the Ben 10 Series.
Vulkanus has made only one appearance in Ben 10 Alien Force.



Vulkanus reappears in Ben 10 Alien Force episode "Kevin's Big Score". Toward the end of the episode, his suit was shattered and revealed that he was only a miniscule alien in a large suit. Vulkanus is only allowed to trade or sell Level 3 Technology. While he was battling Big Chill, he accidentally smashed his arm off.