Bruce Willis

RJ (voice)

Garry Shandling

Verne (voice)

Steve Carell

Hammy (voice)

Wanda Sykes

Stella (voice)

William Shatner

Ozzie (voice)

Nick Nolte

Vincent (voice)

Thomas Haden Church

Dwayne (voice)

Allison Janney

Gladys (voice)

Eugene Levy

Lou (voice)

Catherine O'Hara

Penny (voice)

Avril Lavigne

Heather (voice)

Omid Djalili

Tiger (voice)

Sami Kirkpatrick

Bucky (voice)

Shane Baumel

Spike (voice)

Madison Davenport

Quillo (voice)