Ben Tennyson / Albedo's Ben Tennyson Form (voice)
Big Chill / Brainstorm / Cannon Bolt / Chromastone / Echo Echo / Goop / Humongousaur / Jetray / Spidermonkey / Swampfire / Psyphon (voice)
Gwen Tennyson (voice)
Kevin Levin (voice)
Grandpa Max (voice)
Professor Paradox (voice)
Ship (voice) (as Vyvan Phamm)
Verdona (voice) (as Juliette Landau)
Azmuth / Bellicus / Ghostfreak (voice) (as Jeff Glen Bennett)
Serena (voice)
Vilgax / Octagon Vreedle (voice) (as Jon DiMaggio)
Rhomboid Vreedle (voice)
Charmcaster (voice)
Darkstar (voice)
Dr. Animo / D'Void (voice)