G-Gjengen

Sam Rockwell

Darwin the Guinea Pig (voice)

Jon Favreau

Hurley the Guinea Pig (voice)

Tracy Morgan

Blaster the Guinea Pig (voice)

Penélope Cruz

Juarez the Guinea Pig (voice)

Nicolas Cage

Speckles the Mole (voice)

Dee Bradley Baker

Mooch the Fly (voice)

Bill Nighy

Leonard Saber

Will Arnett

Kip Killian

Zach Galifianakis

Ben

Kelli Garner

Marcie

Steve Buscemi

Bucky the Hamster (voice)

Jared Lavette

Jared the Skunk (voice)

Micah Lavette

Micah the Fox (voice)

Niecy Nash

Rosalita

Loudon Wainwright III

Grandpa Goodman

Tyler Patrick Jones

Connor