character - Clerk (voice)

character - Dr. Bolster (voice)

character - Orderly (voice)

character - Clown (voice) (uncredited)

character - Flippy (voice)

character - Ned (voice)

character - Inspector (voice)

character - Vert Ladderfeller III / Altitooth / Bivouac Ladderfeller (voice)

character - Artephius / Papa Bear (voice)

character - Napoleon (voice)

character - Mr. Howard (voice)

character - Cricket (voice)

character - Savage (voice)

character - Agosto (voice)

character - Roberto (voice)

character - Artephius (voice)

character - Lord Starchbottom (voice)

character - Troll (voice)

character - Steve Trilby (voice)

character - Freakazoid (voice)

character - Savage (voice)

character - Gweelok (voice)

character - Dr. Portillo

character - Kelsepsian (voice)

character - Baron Vain / Katz (voice)

character - Ant #5 (voice)

character - Professor Rotwood / The Huntsman (voice)

character - Chuckles The Silly Piggy (voice)

character - TV Reporter

character - Ed (voice)

character - Cosmo / Ed (voice)

character - Guard (voice)

character - Cosmo / Inspector (voice)

character - Ed / Brain Pod / Bystander (voice)

character - Cosmo (voice)

character - Mr. Director (voice)

character - Seth Tuber's Mom/Angry Mob leader

character - Additional Voices

character - Freakazoid (voice)

character - Lon Borax / Mr. Director

character - Mr. Director (voice)

character - Einstein (voice)

character - Mr. Clown (voice)

character - Freakazoid (voice)

character - John Ferguson

character - Chancellor Maniac / Caveman