Peter Bretter

Jason Segel

Rachel Jansen

Mila Kunis

Sarah Marshall

Kristen Bell

Aldous Snow

Russell Brand

Brian Bretter

Bill Hader

Matthew Van Der Wyk

Jonah Hill

Liz

Liz Cackowski

Darald

Jack McBrayer

Kemo

Taylor Wily

Animal Instincts Detective

Jason Bateman

Wyoma

Maria Thayer

Dwayne the Bartender

Da'Vone McDonald

Dr. Rosenbaum

Steve Landesberg

Chuck

Paul Rudd

Detective Hunter Rush

William Baldwin

Chuck

Paul Rudd

Greg

Kala Alexander

Yoga Instructor

Kristen Wiig

Helpful Hawaiian Waiter

Kalani Robb

Keoki

Branscombe Richmond

Billy Bush

Billy Bush

Photographer

Murray Miller

Mixer

Kirk Fox

Suspect on Animal Instincts

Peter Lewis

Lawyer on Crime Scene

Trula M. Marcus

Hostess at Buffet

Francesca Delbanco

Ann

June Diane Raphael

Leslie

Ahna O'Reilly

Model

Tanisha Harper

Female Bartender

Cynthia Lamontagne

Gag Me Girl

Carla Gallo

Spanish Sex Girl

Carla Alapont

Big Dracula Head

Max Alexander

Keyboard Player

Peter Salett

Puppeteer

Michael Oosterom

Theater Audience Member (uncredited)

Jesse Heiman

Hotel Manager

Gedde Watanabe

Director

Nicholas Stoller