Joey King Beaver Girl (voice)
Simon Pegg Buck (voice)
Seann William Scott Crash (voice)
Bill Hader Gazelle (voice)
John Leguizamo Sid (voice)
Jane Lynch Diatryma Mom (voice)
Denis Leary Diego (voice)
David H. Kramer Additional Voice (voice), ADR Voice Casting
Galen T. Chu Animation Supervisor
Kristen Wiig Pudgy Beaver Mom (voice)
Fletcher Sheridan Playback Singer
Eric Bradley Musician
Frank Welker Momma Dino (voice) (uncredited)
Queen Latifah Ellie (voice), Songs
Ray Romano Manny (voice)
Lori Forte Producer
Josh Peck Eddie (voice)
Peter Mendonca ADR & Dubbing
Mike Thurmeier Co-Director
Karen Disher Scratte (voice)
Maile Flanagan Aardvark Mom (voice)
Mark C. Harris Animation
Chris Wedge Scrat (voice), Executive Producer
Alan Rogers Animation
Kyrsten Mate Sound Effects Editor
Lance Fite Animation
Rick Giovinazzo Orchestrator
Chad N. Walker Assistant Editor
Steve Alterman Additional Voice (voice)
Micah Dahlberg Casting Associate
Shawn Murphy Scoring Mixer
Devika Parikh Additional Voice (voice)
Philip Rogers ADR & Dubbing
Pete Anthony Orchestrator
John Powell Original Music Composer
John Ashton Thomas Orchestrator
Randy Kerber Orchestrator
Randy Thom Sound Designer, Sound Re-Recording Mixer
Lora Hirschberg Sound Re-Recording Mixer
Gwendolyn Yates Whittle Supervising Sound Editor
Paul Diaz Animation
Pamala Tyson Additional Voice (voice)
Selenis Leyva Additional Voice (voice)
Richard Hymns ADR Editor
Conrad Pope Orchestrator
Carlos Saldanha Dinosaur Babies / Flightless Bird (voice), Director
Cindy Slattery Bird (voice)
Mike Reiss Screenplay
Matt Adler Additional Voice (voice)
Johnathan Tchaikovsky Additional Voice (voice)
Brian Menz Animation
Tim Nordquist Additional Voice (voice)
Clea Lewis Start Mom (voice)
Kristen Drewski Animation Production Assistant
Peter Ackerman Screenplay
Holly Dorff Additional Voice (voice), ADR Voice Casting
Allegra Leguizamo Aardvark Girl (voice)
Ryan Hobbiebrunken Animation
Nicole Ehinger Additional Voice (voice)
Justin Weg Animation
Sue Fox Foley Editor
Dave Metzger Orchestrator
JP Sans Animation
June Christopher Additional Voice (voice)
Wade Culbreath Musician
Sofia Scarpa Saldanha Molehog Girl 2 (voice)
Yoni Brenner Screenplay
Kelly Keaton Molehog Mom / Shovelmouth Mom (voice)
Claudia Besso Additional Voice (voice)
Malcon Pierce Animation
Cheryl Nardi Dialogue Editor
Mark Kenna Dolby Consultant