Jason Marsden
Michael (voice)

Lindsay Parker
Corey (voice)

Townsend Coleman
Dad / Michaelangelo (voice)

Laurie O'Brien
Mom / Baby Miss Piggy (voice)

Jeff Bergman
Bugs Bunny / Daffy Duck (voice)

Jim Cummings
Winnie-the-Pooh / Tigger (voice)

George C. Scott
Smoke (voice)

Frank Welker
Slimer / Hefty Smurf / Baby Kermit (voice)

Russi Taylor
Baby Gonzo / Huey / Dewey / Louie (voice)

Janice Karman
Theodore (voice)

Paul Fusco
ALF (voice)

Lorenzo Music
Garfield (voice)

Joey Dedio
The Dealer (voice)

Don Messick
Papa Smurf (voice)

Danny Goldman
Brainy Smurf (voice)

Ross Bagdasarian, Jr.
Alvin / Simon (voice)

Wayne Collins
Additional Voices

Aaron Lohr
Additional Voices

Georgie Irene
Additional Voices

Angella Kaye
Additional Voices