Jason Segel (Peter Bretter)
Kristen Bell (Sarah Marshall)
Mila Kunis (Rachael)
Russell Brand (Aldous Snow)
Bill Hader (Brian)
William Baldwin (Actor/Actress)
Jason Bateman (Actor/Actress)
Billy Bush (Actor/Actress)
Jonah Hill (Matthew)
Paul Rudd (Surfing Instructor)
Jack McBrayer (Actor/Actress)
Maria Thayer (Actor/Actress)