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