Earthworm Jim

Dan Castellaneta

as Earthworm Jim / Grim Reaper / Turns-His-Eyes-Inside-Out Boy / Evil Jim / Abraham Lincoln / Japius / Stock Broker

Jeff Bennett

as Peter Puppy / Narrator / Hamsternator / Neighbor / Thug #1 / Billy's Dad / President / Therapist / Great Worm Spirit

Jim Cummings

as Psy-Crow / Whooping Cough Boy / Zantor / Bird / Johnny Dactyl / Bob the Killer Goldfish / Number One / Number Two / Sword of Righteousness / Walter / Cuban Band Leader / Santa Claus

Kath Soucie

as Princess What's-Her-Name / Cody / Malice The Dog / Billy / Johnny Dactyl's Mom / Little Girl / Perpsichore

Charlie Adler

as Professor Monkey-For-A-Head / Rudolph the Red-Nosed Reindeer / Little Boy / Doorman of the Gods / Taxidermist

Edward Hibbert

as Evil the Cat

Andrea Martin

as Queen Slug-For-A-Butt / Mrs. Bleverage

John Kassir

as Snott / Henchrat