John Leguizamo Sid (voice)
Denis Leary Diego (voice)
Stephen Root Aardvark Dad (voice)
Alan Tudyk Cholly (voice)
Seann William Scott Crash (voice)
Queen Latifah Ellie (voice)
Bill Farmer Additional Voices (voice)
Ariel Winter Additional Voices (voice)
Ray Romano Manny (voice)
Will Arnett Lone Gunslinger Vulture (voice)
Mindy Sterling Female Ox (voice)
Josh Peck Eddie (voice)
Jay Leno Fast Tony (voice)
Carlos Saldanha Director, Dodo (voice)
Laraine Newman Additional Voices (voice)
Chris Renaud Story Artist
Paul Butcher Additional Voices (voice)
Laura Marano Additional Voices (voice)
Joseph Bologna Mr. Start (voice)
Clea Lewis Female Mini Sloth (voice)
Debi Derryberry Diatryma Mom (voice)
Madeleine Martin Additional Voices (voice)
Bob Bergen Additional Voices (voice)
Jess Harnell Additional Voices (voice)
Jennifer Darling Additional Voices (voice)
John Powell Original Music Composer
Renée Taylor Mrs. Start (voice)
Mickie McGowan Additional Voices (voice)
Rodger Bumpass Additional Voices (voice)
Chris Meledandri Executive Producer
James Sie Freaky Male (voice)
Chris Wedge Scrat (voice), Executive Producer
Michael Thurmeier Visual Effects, Supervising Animator
Crispin Freeman Additional Voices (voice)
Gary Burritt Negative Cutter
Brandon Proctor Sound Mix Technician
Al Nelson Sound Effects Editor
Jansen Panettiere Shovelmouth Boy (voice)
Jim Passon Color Timer
Nick Bruno Animation
Matt Romano Start Boy 2 (voice)
Lora Hirschberg Sound Mixer
Jon Vitti Story Consultant
Gwendolyn Yates Whittle Supervising ADR Editor, Supervising Sound Editor
Frank Rinella Foley Mixer
Peter Gaulke Story, Screenplay
Danny Mann Additional Voices (voice)
Jack Angel Additional Voices (voice)
Randy Thom Sound Designer, Supervising Sound Editor, Sound Mixer
Bruce Fowler Orchestrator
Peter Ackerman Dung Beetle Dad (voice)
Brett Hoffman Script Coordinator, Story Coordinator
George Doering Musician
James Thatcher Musician
Ellen Heuer Foley Artist
Gerry Swallow Screenplay, Story
Zack Shada Additional Voices (voice)
Shane Baumel Additional Voices (voice)
Jan Rabson Additional Voices (voice)
Dennie Thorpe Foley
Bob Camp Story Artist
Jim Hecht Screenplay
Harrison Fahn Additional Voices (voice)
Chris Scarabosio Sound Mixer
Gregory Romano Start Boy 1 (voice)
Sofia Scarpa Saldanha Molehog Kid 2 (voice)
John Cygan Additional Voices (voice)
Karen Disher Story Artist
Claudia Besso Additional Voices (voice)
Douglas Murray Supervising Sound Editor
Will Files Assistant Sound Designer
Jana Vance Foley