Peter Bretter
Sarah Marshall
Rachel Jansen
Aldous Snow
Brian Bretter
Matthew Van Der Wyk
Liz Bretter
Darald
Wyoma
Chuck
Animal Instincts Detective
Detective Hunter Rush
Yoga Instructor
Dwayne
Dr. Rosenbaum
Helpful Hawaiian Waiter
Photographer
Kemo
Greg
Hostess at Buffet
Keoki
Billy Bush (Himself)
Suspect on Animal Instincts
Lawyer on Crime Scene
Mixer
Ann
Leslie
Model
Gag Me Girl
Female Bartender
Big Dracula Head
Spanish Sex Girl
Puppeteer
Keyboard Player
Theater Audience Member (uncredited)
Hotel Manager