Anna Faris Jeanette (voice)
Sean Astin Meerkat Manor Narrator (voice)
Justin Long Alvin (voice)
Zachary Levi Toby
Amy Poehler Eleanor (voice)
Anjelah Johnson-Reyes Julie
Christina Applegate Brittany (voice)
David Cross Ian
Jason Lee Dave
Wendie Malick Dr. Rubin
Eric Bauza Digger the NASCAR Gopher (voice)
Willie D. Burton Sound Mixer
Matthew Gray Gubler Simon (voice)
Alexandra Shipp Valentina
Jesse McCartney Theodore (voice)
Aimee Carrero Emily
Michael J. Benavente Supervising Sound Editor
David Betancourt Foley Mixer
R.J. Kizer ADR Editor
Michele Imperato Stabile Executive Producer, Unit Production Manager
Rachele Brooke Smith Chipette Dancer
David 'Goldy' Goldsmith Video Assist Operator
Bernard White Doctor
Guy Bar'ely Animation
Gary C. Bourgeois Sound Re-Recording Mixer
Julie D'Antoni Visual Effects
Arnon Milchan Executive Producer
Bridgit Mendler Becca
Jonathan Aibel Writer
Glenn Berger Writer
Brando Eaton Jeremy
Lanny Joon Paramedic
Joy Osmanski Airline Rep
Steven Lambert Stunts
Ross Bagdasarian, Jr. Producer, Alvin (singing voice) (uncredited)
Michael Keller Sound Re-Recording Mixer
Betty Thomas Director
Doug Jackson Sound Effects Editor
Gary A. Theard Boom Operator
Jon Vitti Writer
Janice Karman Producer, Theodore / The Chipettes (singing voice) (uncredited)
Scott Curtis Foley Editor
Kathryn Joosten Aunt Jackie
Alicia Stevenson Foley Artist
Chris Warren Xander
Gee Alexander Simon Dance Double (uncredited)
Charles Crivier Key Grip
David Lucarelli Sound Recordist
Laura Graham ADR Editor
Dawn Fintor Foley Artist
Mildred Iatrou Supervising Sound Editor
Paul Sonski Set Designer
Nancy MacLeod Sound Effects Editor
Jaimie Trueblood Still Photographer
Ross Bagdasarian Characters
Kevin G. Schmidt Ryan
John Murray Foley Supervisor
Steven R. Mathis Gaffer
Chuck Michael Sound Effects Editor
Juel Bestrop Casting
Glenn Brown Steadicam Operator
Archie Hahn Agent
Julianne Jordan Music Supervisor
Matthew Friedman Editor
David Newman Original Music Composer
Jake Zyrus Charice Pempengco
Gregg Binkley Emcee
Jeff Carson Music Editor
Marcia Hinds Production Design
Karen Rosenfelt Executive Producer
John Moio Stunt Coordinator
Anthony B. Richmond Director of Photography