Dick Powell

Philip Marlowe

Claire Trevor

Helen Grayle

Anne Shirley

Ann Grayle

Otto Kruger

Jules Amthor

Mike Mazurki

Joe "Moose" Malloy

Miles Mander

Leuwen Grayle

Douglas Walton

Lindsay Marriott

Donald Douglas

Police Lt. Randall

Ralf Harolde

Dr. Sonderborg

Esther Howard

Jesse Florian

Ernie Adams

Bartender at "Florian's" (uncredited)

George Anderson

Detective (uncredited)

Edward Biby

Club Patron (uncredited)

Jack Carr

Dr. Sonderborg's Assistant (uncredited)

Tom Coleman

Police Clerk (uncredited)

Ralph Dunn

Detective (uncredited)

Sam Finn

Headwaiter (uncredited)

Rudy Germane

Club Patron (uncredited)

Fred Graham

Man (uncredited)

Bill Hamilton

Man (uncredited)

Paul Hilton

Boy Getting Laundry (uncredited)

John Indrisano

Amthor's Chauffeur (uncredited)

Daun Kennedy

Girl in Bar (uncredited)

Donald Kerr

Taxi Driver (uncredited)

King Lockwood

Club Patron (uncredited)

Paul Phillips

Detective Nulty (uncredited)

Dewey Robinson

New Boss at "Florian's" (uncredited)

Shimen Ruskin

Elevator Operator (uncredited)

Larry Wheat

Grayle's Butler (uncredited)