John Leguizamo Sid (voice)
Stephen Root Aardvark Dad (voice)
Alan Tudyk Cholly (voice)
Denis Leary Diego (voice)
Queen Latifah Ellie (voice)
Seann William Scott Crash (voice)
Mindy Sterling Female Ox (voice)
Ariel Winter Additional Voices (voice)
David C. Hughes Sound Effects Editor
Will Arnett Lone Gunslinger Vulture (voice)
Arun Ram-Mohan Lighting Artist
Gwendolyn Yates Whittle Supervising Sound Editor, Supervising ADR Editor
Ray Romano Manny (voice)
Shawn Murphy Scoring Mixer
Randy Thom Sound Designer, Supervising Sound Editor, Sound Mixer
David S. Peng Animation
Morten Folmer Nielsen ADR Editor
James McKee Smith Additional Music
Samuel H. Hinckley Foley Editor
Jay Leno Fast Tony (voice)
Josh Peck Eddie (voice)
Laraine Newman Additional Voices (voice)
Sue Fox Foley Editor
Peter de Sève Condor Chick (voice), Character Designer
Rodger Bumpass Additional Voices (voice)
Laura Marano Additional Voices (voice)
Michael J. Wilson Characters
Gary Burritt Negative Cutter
Renée Taylor Mrs. Start (voice)
Jess Harnell Additional Voices (voice)
Debi Derryberry Diatryma Mom (voice)
Jack Angel Additional Voices (voice)
Bob Bergen Additional Voices (voice)
Bill Farmer Additional Voices (voice)
David H. Kramer Additional Voices (voice)
Carlos Saldanha Director, Dodo (voice)
Paul Butcher Additional Voices (voice)
Jennifer Darling Additional Voices (voice)
Joseph Bologna Mr. Start (voice)
Mickie McGowan Additional Voices (voice)
James Sie Freaky Male (voice)
Dennie Thorpe Foley
Chris Wedge Scrat (voice), Executive Producer
John Powell Original Music Composer
James Thatcher Musician
Matt Romano Start Boy 2 (voice)
Brian Scott McFadden Glyptodon (voice)
Madeleine Martin Additional Voices (voice)
Jan Rabson Additional Voices (voice)
Derek Casari ADR Engineer
Ellen Heuer Foley Artist
Jana Vance Foley
Lora Hirschberg Sound Mixer
Crispin Freeman Additional Voices (voice)
Jason Fricchione Molehog Grandpa / Shovelmouth Male (voice), Assistant Production Manager
Frank Rinella Foley Mixer
Sherry Lynn Additional Voices (voice)
Zack Shada Additional Voices (voice)
John Cygan Additional Voices (voice)
Danny Mann Additional Voices (voice)
Jim Passon Color Timer
Peter Ackerman Dung Beetle Dad (voice), Characters
Peter Gaulke Story, Screenplay
Nick Bruno Animation
Bruce Fowler Orchestrator
George Doering Musician
David Acord Assistant Sound Editor
Pete Anthony Conductor
Chris Meledandri Executive Producer
Cheryl Nardi Assistant Sound Editor
Will Files Assistant Sound Designer
Natasha Leonnet Digital Intermediate