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)