Anna Faris Jeanette (voice)
Jason Lee Dave
Zachary Levi Toby
Justin Long Alvin (voice)
Christina Applegate Brittany (voice)
Wendie Malick Dr. Rubin
Tim Gomillion Sound Recordist
Sean Astin Meerkat Manor Narrator (voice)
Alexandra Shipp Valentina
Matthew Gray Gubler Simon (voice)
Jesse McCartney Theodore (voice)
Eric Bauza Digger the NASCAR Gopher (voice)
David Cross Ian
Amy Poehler Eleanor (voice)
David Lucarelli Sound Recordist
Aimee Carrero Emily
Paul Sonski Set Designer
Bridgit Mendler Becca
Ross Bagdasarian, Jr. Alvin (singing voice) (uncredited), Producer
Bernard White Doctor
Janice Karman Theodore / The Chipettes (singing voice) (uncredited), Producer
Kathryn Joosten Aunt Jackie
Chris Warren Xander
Anjelah Johnson-Reyes Julie
Glenn Berger Writer
Betty Thomas Director
Jonathan Aibel Writer
Steven Lambert Stunts
Lanny Joon Paramedic
Ross Bagdasarian Characters
Joy Osmanski Airline Rep
Brando Eaton Jeremy
Jake Zyrus Charice Pempengco
Archie Hahn Agent
Gregg Binkley Emcee
Arnon Milchan Executive Producer
Alicia Stevenson Foley Artist
David Newman Original Music Composer
Lori McCoy-Bell Hair Department Head
Paul Gonzales Charice Bassist (uncredited)
Casper Smart Dancer (uncredited)
Kevin G. Schmidt Ryan
Karen Rosenfelt Executive Producer
Rachele Brooke Smith Chipette Dancer
Willie D. Burton Sound Mixer
Jeff Carson Music Editor
Scott Curtis Foley Editor
Laura Graham ADR Editor
Anthony B. Richmond Director of Photography
Lars Petersen Construction Coordinator
Brittany Anne Pirtle Cheerleader (uncredited)
Charles Crivier Key Grip
R.J. Kizer ADR Editor
Jon Vitti Writer
Seth Yanklewitz Casting
Dawn Fintor Foley Artist
Juel Bestrop Casting
Alexandra Welker Costume Design
Nancy MacLeod Sound Effects Editor
Thomasina Gross Chipette Dancer
Christine Sirois Sound Recordist
Michael J. Benavente Supervising Sound Editor
John Moio Stunt Coordinator
Marcia Hinds Production Design
Michael Keller Sound Re-Recording Mixer
Rosero McCoy Choreographer
Gary C. Bourgeois Sound Re-Recording Mixer
Marty Dew Chipmunk Dancer
Bo Johnson Art Direction
Dan DiPrima Supervising Music Editor
David Lautman High School Student (uncredited)
Guy Bar'ely Animation