On screen
Cast
26 credited performers
Cathy Cavadini
Blossom (voice)
Tara Strong
Bubbles (voice)
E. G. Daily
Buttercup (voice)
Tom Kenny
Mayor / Snake / Lil' Arturo / Narrator (voice)
Tom Kane
Professor Utonium / Him / Talking Dog (voice)
Roger L. Jackson
Mojo Jojo (voice)
Jennifer Martin
Ms. Sara Bellum (voice)
Jennifer Hale
Ms. Keane / Princess Morbucks / Sedusa (voice)
Jim Cummings
Fuzzy Lumpkins (voice)
Jeff Bennett
Ace / Grubber / Big Billy (voice)
Chuck McCann
The Amoeba Boys (voice)
Rob Paulsen
Puppet Pal Mitch (voice)
Julie Nathanson
Science Teacher / Schoolgirl #1 / Young Ms. Bellum (voice)
Candi Milo
Newswoman (voice)
Phil LaMarr
Bouncer / Guvn'r / Big John / Peses Bill (voice)
Kevin Michael Richardson
Alien Leader / Mailman / Government Man #3 (voice)
Phyllis Diller
Mask Scara (voice)
Christine Cavanaugh
Bunny (voice)
June Foray
Madame Argentina (voice)
Greg Eagles
Sandman (voice)
Mark Hamill
Criminal / Cop #1 (voice)
Don Shank
Naked Guy / Snotty Bank Teller / Man #3 (voice)
John DiMaggio
Captain Crack McGraigen (voice)
Dee Bradley Baker
Parrot / Reginald (voice)
Derin Basden
Lawyer / Man #3 / Monster #6 (voice)
Clancy Brown
Mascumax (voice)