Robert Montgomery

Phillip Marlowe

Audrey Totter

Adrienne Fromsett

Lloyd Nolan

Lieutenant DeGarmot

Tom Tully

Captain Kane

Leon Ames

Derace Kingsby

Jayne Meadows

Mildred Haveland

Dick Simmons

Chris Lavery

Morris Ankrum

Eugene Grayson

Lila Leeds

Receptionist

William Roberts

Artist

Kathleen Lockhart

Mrs. Grayson

Ellay Mort

Crystal

Ellen Ross

Elevator Girl (Uncredited)

Eddie Acuff

Ed, Coroner (Uncredited)

Charles Bradstreet

Party Guest (Uncredited)

Robert Montgomery