Mark Hamill
Albert Farthington (voice)
Jon Heder
Behemoth (voice)
Kevin Conroy
Wade Brewster / Eclipse (voice)
Gary Anthony Williams
Bailey Broman / Blackout (voice)
Michael Dorn
Dr. Michael Moghson (voice)
Jonathan Mangum
Prof. Poindexter Flowers (voice)
Tara Cardinal
Janice Adventura / Ms. Adventure (voice)
Sonny Dyon
Mayor Harold Wrigley (voice)
Alex Dyon
Mike Bundy (voice)
Dean Cudworth
Marv Clarkson / Mr. Wonder (voice)
Starr Lajoie
Athena Adventura / Mighty Maiden (voice)