John Leguizamo Sid (voice)
Alan Tudyk Cholly (voice)
Seann William Scott Crash (voice)
Denis Leary Diego (voice)
Will Arnett Lone Gunslinger Vulture (voice)
Queen Latifah Ellie (voice)
Ariel Winter Additional Voices (voice)
Stephen Root Aardvark Dad (voice)
Ray Romano Manny (voice)
Jay Leno Fast Tony (voice)
Chris Wedge Scrat (voice), Executive Producer
Josh Peck Eddie (voice)
Mindy Sterling Female Ox (voice)
Laraine Newman Additional Voices (voice)
Chris Scarabosio Sound Mixer
Debi Derryberry Diatryma Mom (voice)
Laura Marano Additional Voices (voice)
Jess Harnell Additional Voices (voice)
Paul Butcher Additional Voices (voice)
John Powell Original Music Composer
Al Nelson Sound Effects Editor
Rodger Bumpass Additional Voices (voice)
Bob Bergen Additional Voices (voice)
Mickie McGowan Additional Voices (voice)
Jack Angel Additional Voices (voice)
Carlos Saldanha Director, Dodo (voice)
Madeleine Martin Additional Voices (voice)
Danny Mann Additional Voices (voice)
Renée Taylor Mrs. Start (voice)
Bill Farmer Additional Voices (voice)
Chris Meledandri Executive Producer
Jennifer Darling Additional Voices (voice)
Nick Bruno Animation
Peter Ackerman Dung Beetle Dad (voice), Characters
Michael J. Wilson Characters
Jansen Panettiere Shovelmouth Boy (voice)
Joseph Bologna Mr. Start (voice)
Gwendolyn Yates Whittle Supervising Sound Editor, Supervising ADR Editor
Crispin Freeman Additional Voices (voice)
Jan Rabson Additional Voices (voice)
David C. Hughes Sound Effects Editor
Randy Thom Sound Designer, Supervising Sound Editor, Sound Mixer
Lora Hirschberg Sound Mixer
James Sie Freaky Male (voice)
Sherry Lynn Additional Voices (voice)
Clea Lewis Female Mini Sloth (voice)
Claudia Besso Additional Voices (voice)
David Acord Assistant Sound Editor
Zack Shada Additional Voices (voice)
Matt Romano Start Boy 2 (voice)
Michael Berg Characters
Will Files Assistant Sound Designer
Brandon Proctor Sound Mix Technician
Sean England Foley Recordist
Peter Gaulke Story, Screenplay
Mike Thurmeier Visual Effects, Supervising Animator
Pete Anthony Conductor
Galen T. Chu Animation Supervisor
Shawn Murphy Scoring Mixer
Lori Forte Producer
Dennie Thorpe Foley
Shane Baumel Additional Voices (voice)
Jana Vance Foley
Morten Folmer Nielsen ADR Editor
Marshall Efron Start Dad (voice)
Jim Passon Color Timer
Jim Hecht Screenplay
John Cygan Additional Voices (voice)
Gerry Swallow Screenplay, Story
Brett Hoffman Script Coordinator
Blanca Camacho Additional Voices (voice)
Tim Nordquist Co-Editor