Samuel Spade
Humphrey Bogart
Brigid O'Shaughnessy
Mary Astor
Joel Cairo
Peter Lorre
Iva Archer
Gladys George
Kasper Gutman
Sydney Greenstreet
Det. Lt. Dundy
Barton MacLane
Effie Perine
Lee Patrick
Effie Perine
Lee Patrick
Det. Tom Polhaus
Ward Bond
Miles Archer
Jerome Cowan
Wilmer Cook
Elisha Cook Jr.
Wilmer Cook
Elisha Cook Jr.
Luke
James Burke
Capt. Jacobi (uncredited)
Walter Huston
Frank Richman
Murray Alper
Bryan
John Hamilton
District Attorney Bryan
John Hamilton
Mate of the La Paloma
Emory Parnell
Ship's mate (uncredited)
Emory Parnell
Policeman
Robert E. Homans
Policeman (uncredited)
Robert Homans
Stenographer (uncredited)
Creighton Hale
Reporter
Charles Drake
Reporter
William Hopper
Reporter
Hank Mann
Announcer
Jack Mower
Bit Part
Chester Gan