Earl Sinclair (voice)
Fran Sinclair (voice)
Robbie Sinclair (voice)
Charlene Sinclair (voice)
Baby Sinclair (voice)
Roy Hess (voice) / Roy Hess / Buddy Glimmer (voice)
Grandma Ethyl Phillips (voice)
B.P. Richfield (voice)
Monica Devertebrae (voice) / Elder #3 (voice)
Mr. Pulman (voice) / Maurice (voice)
Inspector (voice) / Guy in the Lab Coat (voice)
Spike (voice)
Ticket Guy (voice) / Ed (voice)
Mindy (voice) / Sitcom Wife (voice)
Gus Molehill (voice) / Grown Baby (voice)
Jean-Claude (voice) / The Devil (voice)
WeSaySoCorp Announcer (voice) / Elder in Chief (voice)
Timmy (voice) / Wereman (voice)
Narrator (voice)
USO Stage Manager (voice) / News Bulletin Announcer (voice)
Caroline Foxworth (voice) / Simone Poupon (voice)
Additional Dinosaur Performer / Cavepeople
Ted (voice) / Clerk (voice)
Arthur Rizzic (voice) / Aubrey Molehill (voice)
