Skyler Gisondo as B-Dawg (voice)

Josh Flitter as Budderball (voice)

Liliana Mumy as Rosebud (voice)

Henry Hodges as Mudbud (voice)

Jimmy Bennett as Buddha (voice)

Dylan Sprouse as Shasta (voice)

Cainan Wiebe as Pete

Lise Simms as Meg

Kris Kristofferson as Talon (voice)

Tom Everett Scott as Buddy (voice)

Molly Shannon as Molly (voice)

Whoopi Goldberg as Miss Mittens (voice)

Jim Belushi as Bernie (voice)

Cynthia Stevenson as Jackie Framm

Dylan Minnette as Noah Framm

Richard Karn as Patrick

John Kapelos as Jean George

Lothaire Bluteau as Francois (voice)

Paul Rae as Phillipe (voice)

Kelly Chapek as Alice

Jarvis Dashkewytch as Sam

Tyler Foden as Bartleby

Gig Morton as Billy

Dominic Scott Kay as Adam

Mike Dopud as Joe

Kolton Nowaczynski as Paul

Christian Pikes as Henry

Charles C. Stevenson Jr. as Sheriff Ryan

Paula Lindberg as Icelandic Racer

Michael Teigen as Deputy Dan

Lucas Zayonc as Joel

Jason Bryden as Announcer Phil

Anthony Harrison as Coach

Nicholas Harrison as Pilot

Taku Kawai as Japanese Racer

Viv Leacock as Deliveryman

Stuart Malinowski as Russian Racer

Mackenzie Mowat as Pretty Girl

William Samples as Butler

Malcolm Scott as Co-Pilot

Cliff Solomon as Inuit

Lorna Joan Barrie as Race spectator (uncredited)

Anna McRoberts as Teacher (uncredited)