Philip Marlowe

Helen Grayle

Ann Grayle

Jules Amthor

Joe "Moose" Malloy

Leuwen Grayle

Lindsay Marriott

Police Lt. Randall

Dr. Sonderborg

Jesse Florian

Bartender at "Florian's" (uncredited)

Detective (uncredited)

Club Patron (uncredited)

Dr. Sonderborg's Assistant (uncredited)

Police Clerk (uncredited)

Detective (uncredited)

Headwaiter (uncredited)

Club Patron (uncredited)

Man (uncredited)

Man (uncredited)

Boy Getting Laundry (uncredited)

Amthor's Chauffeur (uncredited)

Girl in Bar (uncredited)

Taxi Driver (uncredited)

Club Patron (uncredited)

Detective Nulty (uncredited)

New Boss at "Florian's" (uncredited)

Elevator Operator (uncredited)

Grayle's Butler (uncredited)