Sam Spade
Ricardo Cortez
Ruth Wonderly
Bebe Daniels
Capt. John Jacobi (uncredited)
Agostino Borgato
District Attorney (uncredited)
Morgan Wallace
Sarah the Prison Matron (uncredited)
Lucille Ward
Casper Gutman
Dudley Digges
Effie Perrine
Una Merkel
Police Lt. Dundy
Robert Elliott
Iva Archer
Thelma Todd
Dr. Joel Cairo
Otto Matieson
Miles Archer
Walter Long
Wilmer Cook
Dwight Frye
Det. Sgt. Tom Polhaus
J. Farrell MacDonald
Director
Roy Del Ruth
Novel
Dashiell Hammett
Screenplay
Maude Fulton
Director of Photography
William Rees
Editor
George Marks
Art Direction
Robert M. Haas
Brown Holmes
Wardrobe Designer
Earl Luick