What Happens in Vegas

Cameron Diaz

Joy McNally

Ashton Kutcher

Jack Fuller

Rob Corddry

Hater

Lake Bell

Tipper

Jason Sudeikis

Mason

Treat Williams

Jack Fuller Sr.

Deirdre O'Connell

Mrs. Fuller

Michelle Krusiec

Chong

Dennis Farina

Richard Banger

Zach Galifianakis

Dave the Bear

Queen Latifah

Dr. Twitchell

Krysten Ritter

Kelly

Ricky Garcia

Fuller Closets Worker

Andy Daly

Curtis

Benita Robledo

Maid

Dennis Miller

Judge Whopper

Amanda Setton

Hot Woman

Ricardo Walker

Male Cop (Stripper)

Ben Best

Cab Driver

Clem Cheung

Fruit Guy

Eric Zuckerman

Tour Guide

Caroline Willman

Sammy

Billy Eichner

Band Leader

Maddie Corman

Joy's Lawyer

Jennifer Trier

Aunt Fuller

Michael Harkins

Team Leader

Adam Zuniga

Mr. Chong "Brainiac"

Ariel Shafir

Party Guy #2

Ron Carter

Jazz Trio Member

Michael Rodoja

Ball Room Band Member

Jules Hartley

Ball Room Band Member

Brian M. Wixson

Ball Room Band Member

Harry Corrigan

Skateboarder (uncredited)

Maria Di Angelis

Joy's Friend (uncredited)

Cassidy Gard

Joy's Friend (uncredited)

Tex Allen

Wall Street Banker (uncredited)

Delia Sheppard

VIP Host (uncredited)

Anna Elizabeth Kendrick

Cocktail Waitress (uncredited)

Hector Lincoln

DJ #2 (uncredited)

Charles Pendelton

Tourist (uncredited)

Bruce Perkins

Tourist (uncredited)

RJ Konner

Lawyer (uncredited)

Stephanie Domini

Party Goer (uncredited)

Audrey Fafard

Party Goer (uncredited)

Vladimir Troitsky

NYMEX Trader (uncredited)

Thomas Torrey

NYMEX Trader (uncredited)

Tom Stratford

Baseball Coach (uncredited)

Nicole Dupre Sobchack

Kissed Bride (uncredited)

Sarah Poynter

(voice) (uncredited)