Guest Stars Simon Templeman voices Dr. Doom Tony Jay voices Galactus Kathy Ireland voices Crystal Iona Morris voices Madam Medusa Beau Weaver voices Trapster Ron Perlman voices The Wizard Michael Dorn voices Gorgon Rocky Carroll voices Triton Mark Hamill voices Maximus Jess Harnell voices Super Skrull Ron Perlman voices Dr. Bruce Banner / Hulk Brad Garrett voices Hydroman Clyde Kusatsu voices Karnak Kay E. Kuter voices Ego The Living Planet Jamie Horton voices Psycho-man Jess Harnell voices Impossible Man