as Dr. Bolster (voice)

as Orderly (voice)

as Clerk (voice)

as Flippy (voice)

as Clown (voice) (uncredited)

as Ned (voice)

as Inspector (voice)

as Vert Ladderfeller III / Altitooth / Bivouac Ladderfeller (voice)

as Artephius / Papa Bear (voice)

as Savage (voice)

as Mr. Howard (voice)

as Napoleon (voice)

as Agosto (voice)

as Roberto (voice)

as Artephius (voice)

as Cricket (voice)

as Lord Starchbottom (voice)

as Steve Trilby (voice)

as Freakazoid (voice)

as Troll (voice)

as Savage (voice)

as Gweelok (voice)

as Kelsepsian (voice)

as Dr. Portillo

as Baron Vain / Katz (voice)

as Ant #5 (voice)

as Professor Rotwood / The Huntsman (voice)

as Chuckles The Silly Piggy (voice)

as TV Reporter

as Ed (voice)

as Cosmo / Inspector (voice)

as Guard (voice)

as Ed / Brain Pod / Bystander (voice)

as Cosmo / Ed (voice)

as Cosmo (voice)

as Mr. Director (voice)

as Additional Voices

as Seth Tuber's Mom/Angry Mob leader

as Freakazoid (voice)

as Mr. Director (voice)

as Mr. Clown (voice)

as Einstein (voice)

as Freakazoid (voice)

as Sy Sykman (voice)

as John Ferguson

as Chancellor Maniac / Caveman