Through a series of misunderstandings, Alvin, Simon and Theodore come to believe that Dave is going to propose to his new girlfriend in New York City - and dump them. They have three days to get to him and stop the proposal.
Dave
Alvin (voice)
Simon (voice)
Theodore (voice)
Samantha
Miles
Agent Suggs
Ashley Grey
Barry
Brittany (voice)
Eleanor (voice)
Jeanette (voice)
Party Cop #1
Party Cop #2
Wyatt the Pizza Guy
Kid
Paparazzi #1
Paparazzi #2
Ms. Price
TSA Officer
First Class Flight Attendant
Cab Coordinator
Party Planner
Owner
Clapping Person
Cab Driver
Giant Bearded Guy
Large Cowboy
Bus Driver
Ticket Agent
Man Behind Mask
Airline Ticket Agent
Young Employee
Hotel Babysitter
Maitre'd
Alice
American Idol Bad Auditioner
Passing Record Executive
DJ
Fan #1
Fan #2
First Record Executive
Second Record Executive
Judge
Anna
DJ at Party
Access Hollywood Reporter
Access Hollywood Anchor
Parade Woman
First Class Passenger
Party Guy
Miniature Golf Boy
Pool Attendant
Waitress Passing Lady
Female Bartender
Brass Band Member
Brass Band Member
Brass Band Member
Brass Band Member
Brass Band Member
Brass Band Member
Brass Band Member
Brass Band Member
"Alvin" Reader
"Simon" Reader
"Theodore" Reader
Shelbourne Hotel Guest (voice) (uncredited)
Alvin (singing voice) (uncredited)
Photographer (uncredited)
Theodore / The Chipettes (singing voice) (uncredited)
Characters
Characters
Producer
Producer
Choreographer
Choreographer
Storyboard
Stunt Driver
Animation Supervisor
Music Supervisor
Music Supervisor
Production Design
Executive Producer
Executive Producer
Executive Producer
Executive Producer
Writer
Visual Effects Producer
Associate Producer
Associate Producer
Choreographer
Choreographer
Choreographer
Supervising Art Director
Set Decoration
Sound Mixer
Assistant Art Director
Post Production Coordinator
Visual Effects Editor
Visual Effects Editor
Supervising Sound Editor
Supervising Sound Editor
Music Editor
Music Editor
Music Editor
Music Editor
Makeup Department Head
Hair Department Head
Makeup Artist
Hairstylist
Hairstylist
Special Effects Coordinator
Senior Visual Effects Supervisor
Visual Effects Supervisor
Visual Effects Supervisor
Second Unit Director
Original Music Composer
Costume Design
Executive Music Producer
Stunts
Stunt Coordinator
Visual Effects Producer
Stunts
Director
Director of Photography
Editor
Casting
Casting
Writer
CG Supervisor
CG Supervisor
Set Decorating Coordinator