
Jason LeeDave

David CrossIan

Jenny SlateZoe

Justin LongAlvin (voice)

Matthew Gray GublerSimon (voice)

Jesse McCartneyTheodore (voice)

Amy PoehlerEleanor (voice)

Anna FarisJeanette (voice)

Christina ApplegateBrittany (voice)

Alan TudykSimone (voice)

Michael P. NortheyHawaiian Shirt Guy

Sophia AguiarClub Woman #1

Lauren GottliebClub Woman #2

Tera PerezClub Woman #3

Andy BuckleyCaptain Correlli

Chad KrowchukWaiter

Luisa d'OliveiraTessa

Tucker AlbrizziTucker / Kite Kid

Nelson WongCasino Guy

Michael BagdasarianExcursion Clerk

Amber-Rochelle DeMarcoDamsel #1

Marcela CaceresDamsel #2

Natalie SutcliffeDamsel #3

Ian HarmonMonster

Phyllis SmithFlight Attendant

Ross Bagdasarian, Jr.Alvin (singing voice) (uncredited)

Janice KarmanTheodore / The Chipettes (singing voice) (uncredited)

Eoin BatesMusic Executive (uncredited)

Seth Robert DuskyAdditional Voices (voice) (uncredited)

Wendell KinneyCruise Guest (uncredited)

Jeremy PalkoCruise Guy (uncredited)

Rachael WegenerModel (uncredited)