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
Lanny Joon Paramedic
Ross Bagdasarian, Jr. Producer, Alvin (singing voice) (uncredited)
Betty Thomas Director
Willie D. Burton Sound Mixer
Janice Karman Producer, Theodore / The Chipettes (singing voice) (uncredited)
Kathryn Joosten Aunt Jackie
Bernard White Doctor
Jon Vitti Writer
Chris Warren Xander
Kevin G. Schmidt Ryan
Gregg Binkley Emcee
Ross Bagdasarian Characters
Arnon Milchan Executive Producer
Steven Lambert Stunts
Lori McCoy-Bell Hair Department Head
Archie Hahn Agent
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
Michael Keller Sound Re-Recording Mixer
Paul Gonzales Charice Bassist (uncredited)
Casper Smart Dancer (uncredited)
Rosero McCoy Choreographer
Guy Bar'ely Animation
Mildred Iatrou Supervising Sound Editor
David Lucarelli Sound Recordist
Gee Alexander Simon Dance Double (uncredited)
Julie D'Antoni Visual Effects
Laura Graham ADR Editor
Tallie Brinson Principal Dancer (uncredited)
Chuck Michael Sound Effects Editor
Steve Terada Li'l Rosero Dancer
Charles Crivier Key Grip
Jeff Carson Music Editor
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
Jesse Johnstone Sound Recordist
Brittany Anne Pirtle Cheerleader (uncredited)
Dawn Fintor Foley Artist
Julianne Jordan Music Supervisor
Gary C. Bourgeois Sound Re-Recording Mixer
Seth Yanklewitz Casting
Nancy MacLeod Sound Effects Editor