Mammoth

Vincent Ventresca

Dr. Frank Abernathy

Summer Glau

Jack Abernathy

Tom Skerritt

Simon Abernathy

Constantin Drăgănescu

Gordon

Cole Williams

Squirrelly

Charles Carroll

Sheriff Marion Morrison

Mark Irvingsen

Deputy Dino

David Kallaway

Deputy Bud

Leila Arcieri

Agent Powers

Andrew Peter Marin

Floyd

Dan Radulescu

Moe the Monkey Man

Julia Lashae

Tour Guide