John Leguizamo Sid (voice)
Stephen Root Aardvark Dad (voice)
Denis Leary Diego (voice)
Ariel Winter Additional Voices (voice)
Alan Tudyk Cholly (voice)
Will Arnett Lone Gunslinger Vulture (voice)
Queen Latifah Ellie (voice)
Seann William Scott Crash (voice)
Bob Bergen Additional Voices (voice)
Mindy Sterling Female Ox (voice)
Ray Romano Manny (voice)
Josh Peck Eddie (voice)
Jay Leno Fast Tony (voice)
Craig Paulsen Associate Editor
Joseph Bologna Mr. Start (voice)
Clea Lewis Female Mini Sloth (voice)
James Sie Freaky Male (voice)
Renée Taylor Mrs. Start (voice)
Laura Marano Additional Voices (voice)
Rodger Bumpass Additional Voices (voice)
Laraine Newman Additional Voices (voice)
Bill Farmer Additional Voices (voice)
Debi Derryberry Diatryma Mom (voice)
Paul Butcher Additional Voices (voice)
Madeleine Martin Additional Voices (voice)
Jack Angel Additional Voices (voice)
Jansen Panettiere Shovelmouth Boy (voice)
Jon Vitti Story Consultant
Randy Thom Supervising Sound Editor, Sound Designer, Sound Mixer
Chris Renaud Story Artist
Adam Van Wyk Additional Storyboarding
Jess Harnell Additional Voices (voice)
John Powell Original Music Composer
Mickie McGowan Additional Voices (voice)
Brett Hoffman Story Coordinator, Script Coordinator
Danny Mann Additional Voices (voice)
Jim Passon Color Timer
Jennifer Darling Additional Voices (voice)
Chris Wedge Executive Producer, Scrat (voice)
Peter Ackerman Dung Beetle Dad (voice)
Karen Disher Story Artist
Jan Rabson Additional Voices (voice)
John Cygan Additional Voices (voice)
Lora Hirschberg Sound Mixer
Derek Casari ADR Engineer
Zack Shada Additional Voices (voice)
Chris Meledandri Executive Producer
Gerry Swallow Screenplay, Story
Carlos Saldanha Dodo (voice), Director
Ellen Heuer Foley Artist
James Thatcher Musician
Dennie Thorpe Foley
Al Nelson Sound Effects Editor
Gary Burritt Negative Cutter
Crispin Freeman Additional Voices (voice)
Gwendolyn Yates Whittle Supervising ADR Editor, Supervising Sound Editor
Brandon Proctor Sound Mix Technician
Jim Hecht Screenplay
Sherry Lynn Additional Voices (voice)
Chris Scarabosio Sound Mixer
Galen T. Chu Animation Supervisor
Peter de Sève Character Designer, Condor Chick (voice)
Natasha Leonnet Digital Intermediate
Will Files Assistant Sound Designer
Jana Vance Foley
Claudia Besso Additional Voices (voice)
Nick Bruno Animation
Marshall Efron Start Dad (voice)
George Doering Musician
Thomas Sharkey Additional Voices (voice)
Michael Thurmeier Visual Effects, Supervising Animator
Bruce Fowler Orchestrator