Imperiex

 Imperiex is a new threat and the main antagonist of the second season of Ben 10: Alien Justice Force. And Ultra Ben's archenemy.

Appearance
He looks the same like he was in the animated series of Legion of Super-Heroes.

Appearances

 * New Changes, New Lifes

Trivia

 * He is a greater threat than Vilgax, Ghostfreak, Eon, the Highbreed, the HIVE Queen, Aggregor, Nanotron, Drakor, Krylidor and Albedo as Evil Way Big.