Joey King Beaver Girl (voice)
Kristen Wiig Pudgy Beaver Mom (voice)
Denis Leary Diego (voice)
Queen Latifah Ellie (voice)
Jane Lynch Diatryma Mom (voice)
Frank Welker Momma Dino (voice) (uncredited)
Chris Wedge Scrat (voice), Executive Producer
Simon Pegg Buck (voice)
Ray Romano Manny (voice)
Seann William Scott Crash (voice)
Matt Adler Additional Voice (voice)
Bill Hader Gazelle (voice)
John Powell Original Music Composer
Maile Flanagan Aardvark Mom (voice)
John Leguizamo Sid (voice)
Randy Kerber Orchestrator
Karen Disher Scratte (voice)
Kyrsten Mate Sound Effects Editor
Tom Carlson Music Editor
Fletcher Sheridan Playback Singer
Micah Dahlberg Casting Associate
Tim Nordquist Additional Voice (voice)
Moroni Taylor Storyboard Artist
Josh Peck Eddie (voice)
Jason Fricchione Adult Molehog Male (voice), Editorial Manager
Eric Bradley Musician
Clea Lewis Start Mom (voice)
Tansal Arnas Schedule Coordinator
Paul Downs Animation
Allegra Leguizamo Aardvark Girl (voice)
Randy Thom Sound Re-Recording Mixer, Sound Designer
Selenis Leyva Additional Voice (voice)
Lora Hirschberg Sound Re-Recording Mixer
Marshall Winn ADR Editor
Shawn Murphy Scoring Mixer
Pamala Tyson Additional Voice (voice)
Kathy Graves Toon Assistant Editor
Dennie Thorpe Foley
Michael Berg Screenplay
June Christopher Additional Voice (voice)
Pete Anthony Orchestrator
Sue Fox Foley Editor
Gwendolyn Yates Whittle Supervising Sound Editor
Michael Knapp Art Direction
Devika Parikh Additional Voice (voice)
George Doering Musician
Lori Forte Producer
Carlos Saldanha Dinosaur Babies / Flightless Bird (voice), Director
Holly Dorff Additional Voice (voice), ADR Voice Casting
Johnathan Tchaikovsky Additional Voice (voice)
Jana Vance Foley
Jason Taylor Animation
David H. Kramer Additional Voice (voice), ADR Voice Casting
Richard Hymns ADR Editor
Peter Ackerman Screenplay
Cheryl Nardi Dialogue Editor
Mike Reiss Screenplay
Sean Ermey Animation
Yoni Brenner Screenplay
Claudia Besso Additional Voice (voice)
Kelly Keaton Molehog Mom / Shovelmouth Mom (voice)
Peter DeSève Character Designer
Chris Regan Color Timer
Van Phan Animation
Jeff Brodsky Creature Technical Director
Mike Thurmeier Co-Director
Joe Bonomo Systems Administrators & Support
Roy Latham ADR & Dubbing
David McCharen Additional Voice (voice)
Philip Rogers ADR & Dubbing
Motoko Wada Modeling
Steve Alterman Additional Voice (voice)