Casting | Rôle |
|---|
| Carlos Alazraqui | Rocko / Spunky / Leon Chameleon / Gordon the Foot / Mitch / Bun Master (voice) |
| Tom Kenny | Heffer Wolfe / Chuck Chameleon / Really Really Big Man / Papa Elf / Newscaster / Captain Compost Heap / Salesman / Winds of Change / Tom / Tree (voice) |
| Charlie Adler | Ed Bighead / Bev Bighead / Mr. Dupette / Grandpa Wolfe / Mr. Fathead / Mrs. Fathead / Dead Napoleon (voice) |
| Mr. Lawrence | Filburt / Maitre D' / Martian 1 / Doug / Hopping Hessian / Doodleberg / Lizard (voice) |
| Jill Talley | Nosey / Rabbit Mama / Schlam-O Girl / Teacher / Elephant Lady (voice) |
| Linda Wallem | Dr. Hutchinson / Aunt Gretchen / Female Giraffe (voice) |
| Steve Little | Nineman / Construction Worker / Cowboy / Ox / Worm B (voice) |
| Joe Murray | Ralph Bighead / Rachel Bighead (voice) |
| Cosmo Segurson | Pillow Salesman / Martian 2 / VHS Tape / Inured Worm / TV Announcer 1 / Russian Hockey Player (voice) |
| Tom Smith | Really Really Big Man - Movie / VCR (voice) |
| Dan Becker | Rabbit Dad (voice) |
