Eugene Levy Lou (voice)
Bruce Willis RJ (voice)
Brian Stepanek Nugent the Dog (voice)
William Shatner Ozzie (voice)
Wanda Sykes Stella (voice)
Steve Carell Hammy (voice)
Hans Zimmer Executive Music Producer
Allison Janney Gladys (voice)
Nick Nolte Vincent (voice)
Bridget Hoffman Additional Voices (voice)
Ariel Winter (voice), Additional Voices (voice)
Nicholas Guest Additional Voices (voice)
Catherine O'Hara Penny (voice)
Omid Djalili Tiger (voice)
Will Finn Storyboard Artist
Emile Ghorayeb Animation
Tim Johnson Director
Ash Brannon Additional Storyboarding
Bob Newlan Foley Editor
Thomas Haden Church Dwayne (voice)
Andy Sisul Assistant Sound Editor
Alastair King Orchestrator
Conrad Vernon Storyboard Artist
Avril Lavigne Heather (voice)
Bill Díaz Animation
Brandon Proctor Sound Mix Technician
Jessie Flower (voice), Additional Voices (voice)
Garry Shandling Verne (voice)
Susan Fitzer Associate Editor
Debra Wilson Debbie (voice)
Madison Davenport Quillo (voice)
Nicholas Bucknall Musician
Stephen J. Eads Thanks
Melchior Zwyer Props
Wayne Hellinger Post Production Coordinator
Marcelo Tubert Additional Voices (voice)
Maggie Kang Storyboard Artist
Amy Rae Jones Lighting Artist
Gary Rizzo Sound Re-Recording Mixer
Jeannie Elias Janis (voice)
Paul Butcher Skeeter (voice)
Randy Thom Sound Mixer
Joel McCrary Dr. Dennis (voice)
Toby Shelton Additional Storyboarding
Karey Kirkpatrick Screenplay, Director
Patrice Avery Production Supervisor
Simon Wells Storyboard Artist
Rob Letterman Thanks
David Hoselton Screenplay
Steve Cunningham Animation
Matt Pomeroy Production Supervisor
Jordan Orr Additional Voices (voice)
Jessica DiCicco Shelby (voice)
Wilbert Plijnaar Additional Storyboarding
Charlie Ramos Modeling
David Soren Story Artist, Storyboard Artist
Claire Morrissey Animation
Juan Peralta Sound Mix Technician, Sound Re-Recording Assistant
Geoffrey Pomeroy Ranger (voice)
Simon Otto Art Department Manager
Steve Hickner Additional Storyboarding
Rachel Bolt Musician
Shane Baumel Spike (voice)
Maurissa Horwitz First Assistant Editor
Lorne Cameron Screenplay
Lorne Balfe Thanks
David A. Whittaker Sound Effects Editor
Derek Casari ADR Engineer
George Doering Musician
Michael Miller ADR Mixer
Rupert Gregson-Williams Original Music Composer, Orchestrator, Conductor
Kirk Baily Additional Voices (voice)