Jack Black Zeke (voice)
John Leguizamo Sid (voice)
Tara Strong Baby Start / Roshan (voice)
Alan Tudyk Lenny / Freaky Mammal / Dab (voice)
Denis Leary Diego (voice)
Goran Višnjić Soto (voice)
Stephen Root Frank / Start (voice)
Cedric the Entertainer Carl (voice)
Diedrich Bader Oscar (voice)
Kristen Johnston Sylvia (voice) (uncredited)
Jane Krakowski Rachel (voice)
Ray Romano Manfred (voice)
Chris Wedge Director, Dodo / Scrat (voice)
Josh Hamilton Dodo / Aardvark (voice)
Carlos Saldanha Co-Director
Phil Proctor Various Mammals (uncredited)
David Silverman Story
Jørgen Klubien Storyboard Artist
Chris Meledandri Executive Producer
Peter Ackerman Dodo / Freaky Mammal (voice), Screenplay
Michael J. Wilson Story, Screenplay
Patrick Pinney Various Mammals (uncredited)
Steve Martino Art Direction
David Newman Original Music Composer, Conductor
Darin De Paul Additional Voices (voice) (uncredited)
Denny Dillon Glyptodon (voice)
George A. Lara Foley Mixer
Bruce Winant ADR Voice Casting
Everett Downing Jr. Animation
Michael Berg Screenplay
Enrico Casarosa Storyboard Artist
Lorri Bagley Jennifer (voice)
Marko Costanzo Foley Artist
Paul Massey Sound Re-Recording Mixer
Mike Thurmeier Additional Writing, Lead Animator
Kevin O'Brien Storyboard Artist
Galen T. Chu Additional Writing, Animation, Visual Effects
Lori Forte Producer
Mitzi McCall Glyptodon (voice)
Daisuke "Dice" Tsutsumi Matte Painter
Frank Kern Foley Editor
Jim Passon Color Timer
Dann Fink Dodo (voice) (uncredited)
Tim Nordquist Associate Editor
Craig Berkey Sound Effects Editor
Sean Garnhart Sound Designer, Supervising Sound Editor
Bill Orrico First Assistant Sound Editor
Albert Gasser ADR Editor
Marissa Littlefield ADR Editor
Tim Gomillion Sound Recordist
Peter de Sève Character Designer
Rodrigo Blaas Animation
Gregory Jamrok Orchestrator
Bryan Godwin Lighting Technician
Nicholas Renbeck ADR Editor
Joshua West Animation
Aaron Hartline Animation
David Torres Animation
Derek Casari ADR Engineer
Dennis Rogers Sound Recordist
Yvette Kaplan Story
Gary Burritt Negative Cutter
Paul Urmson Sound Effects Editor
John C. Donkin Associate Producer
Doug Hemphill Sound Re-Recording Mixer
Jeffrey Joe Animation
John Kurlander Scoring Mixer
Lewis Goldstein Sound Effects Editor
P.J. Benjamin Dodo (voice)
Kenton Jakub ADR Editor
John Carnochan Editor
Moroni Taylor Storyboard Artist