Jason Lee
Dave
Acting
David Cross
Ian
Acting
Jenny Slate
Zoe
Acting
Justin Long
Alvin (voice)
Acting
Matthew Gray Gubler
Simon (voice)
Acting
Jesse McCartney
Theodore (voice)
Acting
Amy Poehler
Eleanor (voice)
Acting
Anna Faris
Jeanette (voice)
Acting
Christina Applegate
Brittany (voice)
Acting
Alan Tudyk
Simone (voice)
Acting
Michael P. Northey
Hawaiian Shirt Guy
Acting
Sophia Aguiar
Club Woman #1
Acting
Lauren Gottlieb
Club Woman #2
Acting
Tera Perez
Club Woman #3
Acting
Andy Buckley
Captain Correlli
Acting
Chad Krowchuk
Waiter
Acting
Luisa d'Oliveira
Tessa
Acting
Tucker Albrizzi
Tucker / Kite Kid
Acting
Nelson Wong
Casino Guy
Acting
Michael Bagdasarian
Excursion Clerk
Acting
Amber-Rochelle DeMarco
Damsel #1
Acting
Marcela Caceres
Damsel #2
Acting
Natalie Sutcliffe
Damsel #3
Production
Ian Harmon
Monster
Acting
Phyllis Smith
Flight Attendant
Acting
Ross Bagdasarian, Jr.
Alvin (singing voice) (uncredited)
Acting
Janice Karman
Theodore / The Chipettes (singing voice) (uncredited)
Acting
Eoin Bates
Music Executive (uncredited)
Acting
Seth Robert Dusky
Additional Voices (voice) (uncredited)
Acting
Wendell Kinney
Cruise Guest (uncredited)
Acting
Jeremy Palko
Cruise Guy (uncredited)
Acting
Rachael Wegener
Model (uncredited)
Acting