Mitchel Musso as DJ (voice)

Sam Lerner as Chowder (voice)

Spencer Locke as Jenny (voice)

Steve Buscemi as Nebbercracker (voice)

Maggie Gyllenhaal as Zee (voice)

Kevin James as Officer Landers (voice)

Nick Cannon as Officer Lister (voice)

Jon Heder as Reginald "Skull" Skulinski (voice)

Jason Lee as Bones (voice)

Catherine O'Hara as Mom (voice)

Fred Willard as Dad (voice)

Kathleen Turner as Constance (voice)

Ryan Whitney as Little Girl (voice)

Woody Schultz as Paramedic #1 (voice)

Ian McConnel as Paramedic #2 (voice)

Erik Walker as Bully #1 (voice)

Matthew Fahey as Bully #2 (voice)

Marissa N. Blanchard as Background Voices

Miles Clark as Background Voices

Harrison Fahn as Background Voices

Bridget Hoffman as Background Voices

Emanuel Orlando as Background Voices

Justin Shenkarow as Background Voices

Corbett Tuck as Background Voices

Ranjani Brow as Background Voices

David Cowgill as Background Voices

Frannie Felder as Background Voices

Wendy Hoffmann as Background Voices

Zoey Poll as Background Voices

W.K. Stratton as Background Voices

Ariel Winter as Background Voices

Tyler Zaentz as Background Voices

Kimberly Beck as Background Voices

Makenna Cowgill as Background Voices

Spencer Lacey Ganus as Background Voices

Mary Mouser as Background Voices

Zack Shada as Background Voices

John Hans Tester as Background Voices

Lora Witty as Background Voices