Bruce Willis RJ (voice)
Steve Carell Hammy (voice)
Catherine O'Hara Penny (voice)
Allison Janney Gladys (voice)
Steve Hickner Additional Storyboarding
William Shatner Ozzie (voice)
Nick Nolte Vincent (voice)
Eugene Levy Lou (voice)
Hans Zimmer Executive Music Producer
Ariel Winter (voice), Additional Voices (voice)
Wanda Sykes Stella (voice)
Bob Newlan Foley Editor
Thomas Haden Church Dwayne (voice)
Debra Wilson Debbie (voice)
Michaela Jill Murphy (voice), Additional Voices (voice)
Madison Davenport Quillo (voice)
Brian Stepanek Nugent the Dog (voice)
Omid Djalili Tiger (voice)
Avril Lavigne Heather (voice)
Paul Butcher Skeeter (voice)
Conrad Vernon Storyboard Artist
Joel McCrary Dr. Dennis (voice)
Rob Letterman Thanks
Jessica DiCicco Shelby (voice)
Lorne Balfe Thanks
Richard L. Anderson Supervising Sound Editor
Simon Wells Storyboard Artist
Garry Shandling Verne (voice)
Nicholas Guest Additional Voices (voice)
Randy Thom Sound Mixer
Dan O'Connell Foley
Karey Kirkpatrick Screenplay, Director
John T. Cucci Foley Artist
John O'Sullivan Systems Administrators & Support
Courtney Bishop ADR Recordist
Tom Lewis Characters
David Soren Story Artist, Storyboard Artist
Jeannie Elias Janis (voice)
Serguei Kouchnerov Animation
Sandy Holt Additional Voices (voice)
Marcelo Tubert Additional Voices (voice)
Gary Rizzo Sound Re-Recording Mixer
Will Finn Storyboard Artist
Rachel Bolt Musician
Nicholas Bucknall Musician
Lorne Cameron Screenplay
Roberto Espanto Domingo Animation
David Hoselton Screenplay
Joshua West Modeling
Ash Brannon Additional Storyboarding
Jordan Orr Additional Voices (voice)
Bridget Hoffman Additional Voices (voice)
Maggie Kang Storyboard Artist
Tim Johnson Director
Rupert Gregson-Williams Original Music Composer, Orchestrator, Conductor
Jeremy Bernstein Animation
William Salazar Supervising Animator
Derek Casari ADR Engineer
Steve McGrath Modeling
Geoffrey Pomeroy Ranger (voice)
Raffaella Filipponi Animation
Todd Kurosawa Additional Storyboarding
Shane Baumel Spike (voice)
Dan Newell Musician
Liang-Yuan Wang Lighting Artist
Tony Siruno Character Designer
Luci Napier Animation
Ben Rush Animation
Thom Enriquez Storyboard Artist
Bart Feliciano Systems Administrators & Support
Nadja Bonacina Modeling
David A. Whittaker Sound Effects Editor