Joey King Beaver Girl (voice)
John Leguizamo Sid (voice)
Bill Hader Gazelle (voice)
Simon Pegg Buck (voice)
Frank Welker Momma Dino / Rudy (voice) (uncredited)
Jane Lynch Diatryma Mom (voice)
Denis Leary Diego (voice)
Kristen Wiig Pudgy Beaver Mom (voice)
Seann William Scott Crash (voice)
Queen Latifah Ellie (voice), Songs
Ray Romano Manny (voice)
Josh Peck Eddie (voice)
Chris Wedge Scrat (voice), Executive Producer
John Powell Original Music Composer
Maile Flanagan Aardvark Mom (voice)
Carlos Saldanha Dinosaur Babies / Flightless Bird (voice), Director
Selenis Leyva Additional Voice (voice)
Robert Huth Animation
Randy Thom Sound Designer, Sound Re-Recording Mixer
June Christopher Additional Voice (voice)
Mike Reiss Screenplay
Matt Adler Additional Voice (voice)
Michael J. Wilson Characters
Pamala Tyson Additional Voice (voice)
Denis St. Amand Score Engineer
Gwendolyn Yates Whittle Supervising Sound Editor
Keith Stichweh Visual Effects Technical Director
Ryan Hobbiebrunken Animation
Nathan Engelhardt Animation
Clea Lewis Start Mom (voice)
Edward Robbins Modeling
Peter Ackerman Screenplay
Devika Parikh Additional Voice (voice)
David Torres Animation
David McCharen Additional Voice (voice)
Mike Thurmeier Co-Director
Kathy Graves Toon Assistant Editor
Michael Berg Screenplay
Lora Hirschberg Sound Re-Recording Mixer
Allegra Leguizamo Aardvark Girl (voice)
Lluis Llobera Animation
JP Sans Animation
Vicki Saulls Sculptor
Claudia Besso Additional Voice (voice)
Karen Disher Scratte (voice)
Van Phan Animation
Roy Latham ADR & Dubbing
Pete Anthony Orchestrator
Matthew Doble Animation
Richard Hymns ADR Editor
John Ashton Thomas Orchestrator
Casey Dame Creature Technical Director
Sophia Ohara Lighting Production Assistant
Harrison Fahn Glypto Boy (voice)
Justin Weg Animation
Nathan Wall Animatronics Supervisor
Daveed Kaplan Modeling
Lucas Leguizamo Aardvark Boy / Beaver Kid #2 (voice)
E. Larry Oatfield Foley Editor
Dennie Thorpe Foley
Ashini Shah Executive Producer
Abraham Aguilar Animation
Cheryl Nardi Dialogue Editor
George Doering Musician
Clayton Stillwell Visual Development
Shaun Cusick Sculptor
James Gu Creature Technical Director
Justine Warwick Assistant Editor
Daniel Patrick O'Brien Sequence Leads
Galen T. Chu Animation Supervisor
Ian Etra Creature Technical Director
Jeff Brodsky Creature Technical Director