Jane Lynch Gail
Cameron Richardson Claire
Jason Lee Dave
Justin Long Alvin (voice)
Beth Riesgraf Mother in Store
Toni-Ann Walker Hair Department Head
Tim Gomillion Sound Recordist
Matthew Gray Gubler Simon (voice)
Jesse McCartney Theodore (voice)
David Cross Ian
Perry Dodgson Boom Operator
Oliver Muirhead Butler
Frank Maharajh Barry
Ross Bagdasarian, Jr. Alvin (singing voice) (uncredited)
Janice Karman Theodore (singing voice) (uncredited), Producer
Natalie Cohen Poolside Girl (uncredited)
Adriane Lenox Vet
Mindy Marin Casting
Melanie Lewis Dancer
Joel Foster Animation
Jayden Lund Security Guard
Tim Hill Director
Ross Bagdasarian Producer, Characters
Christian Wood Digital Compositor
Debbie Evans Stunts
Christopher Lennertz Original Music Composer
Tiara Parker Female Intern 2
Arnon Milchan Executive Producer
Erin Chambers Press Coordinator
Alicia Stevenson Foley Artist
Chris Viscardi Screenplay
Evelyne Barbier Set Designer
Veronica Alicino Amy
Karen Rosenfelt Executive Producer
George Fisher Stunts
Gary Burritt Negative Cutter
Nick Drago Dancer
Allison Karman Female Intern 1
Scott Curtis Foley Editor
David MacMillan Production Sound Mixer
John Robotham Stunts
Christopher Scott Dancer
Christopher Flick Foley Editor
R.J. Kizer ADR Editor
Jon Vitti Story, Screenplay
Peter E. Berger Editor
Peter Lyons Collister Director of Photography
Dawn Fintor Foley Artist
Paul Massey Sound Mixer
Kevin Symons Ted
Emily Ferry Property Master
Alexandra Welker Costume Design
Jillian Warry Barberie Jillian Reynolds
Anne D. McCulley Set Decoration
Kyndra Reevey Dancer
Charlie Daboub Art Direction
John Moio Stunt Coordinator
Don Tiffany Engineer
Will McRobb Screenplay
Rosero McCoy Choreographer
Susan Dawes Supervising Sound Editor
David Giammarco Sound Mixer
Tom Brown Music Arranger
Richard Holland Production Design
Lissette Schettini Assistant Art Director
Peggy Teague Makeup Artist
Dennis Rogers Sound Recordist
George Atamian Set Dresser
Michelle Maniscalco Dancer
Celestina Aladekoba Dancer
Michele Imperato Stabile Unit Production Manager, Executive Producer
Gloria D'Alessandro Dialogue Editor