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