Jack Black Zeke (voice)
Diedrich Bader Oscar (voice)
Denis Leary Diego (voice)
Jane Krakowski Rachel (voice)
Cedric the Entertainer Carl (voice)
Alan Tudyk Lenny / Freaky Mammal / Dab (voice)
Chris Wedge Dodo / Scrat (voice), Director
Stephen Root Frank / Start (voice)
Tara Strong Baby Start (voice)
Nico Abondolo Musician
Ray Romano Manny (voice)
David Silverman Story Consultant
Enrico Casarosa Storyboard Artist
Tim Gomillion Sound Recordist
John Leguizamo Sid (voice)
Goran Višnjić Soto (voice)
Bryan Godwin Lighting Technician
Josh Hamilton Dodo / Aardvark (voice)
Jeff Siergey Additional Writing
Tim Nordquist Associate Editor
Phil Proctor Various Mammals (uncredited)
Moroni Taylor Storyboard Artist
Gregory Jamrok Orchestrator
Darin De Paul Additional Voices (voice) (uncredited)
Patrick Pinney Various Mammals (uncredited)
Nicholas Renbeck ADR Editor
Sean Garnhart Sound Designer, Supervising Sound Editor
Chris Meledandri Executive Producer
Lewis Goldstein Sound Effects Editor
Bill Orrico First Assistant Sound Editor
David Newman Original Music Composer, Conductor
Michael Berg Screenplay
Frank Kern Foley Editor
Bruce Winant ADR Voice Casting
Craig Berkey Sound Effects Editor
Mitzi McCall Glyptodon (voice)
Denny Dillon Glyptodon (voice)
Derek Casari ADR Engineer
George A. Lara Foley Mixer
Lori Forte Producer
Marissa Littlefield ADR Editor
Carlos Saldanha Co-Director
Gary Burritt Negative Cutter
Dann Fink Dodo (voice) (uncredited)
Jim Passon Color Timer
John Carnochan Editor
Marko Costanzo Foley Artist
Lorri Bagley Jennifer (voice)
Peter Ackerman Dodo / Freaky Mammal (voice), Screenplay
Paul Urmson Sound Effects Editor
Rodrigo Blaas Animation
Albert Gasser ADR Editor
Peter DeSève Character Designer
Michael J. Wilson Screenplay, Story
Paul Massey Sound Re-Recording Mixer
Mike Thurmeier Additional Writing
Kevin O'Brien Storyboard Artist
Everett Downing Jr. Animation
John Kurlander Scoring Mixer
James Bresnahan Additional Writing, Lead Animator
Meg Morman Casting Associate
Shayna Brown ADR Recordist
Paul Ohrt Production Accountant
Dennis Rogers Sound Recordist
Daisuke "Dice" Tsutsumi Matte Painter
Kelly Kimball Additional Effects Development
John C. Donkin Associate Producer
Philip A. Cruden Background Designer
Andreas Procopiou Animation
Kendall McCarthy Post Production Supervisor
Joshua West Animation
Doug Hemphill Sound Re-Recording Mixer