Humphrey Bogart
Samuel Spade
Mary Astor
Brigid O'Shaughnessy
Gladys George
Iva Archer
Peter Lorre
Joel Cairo
Barton MacLane
Lt. of Detectives Dundy
Lee Patrick
Effie Perine
Sydney Greenstreet
Kasper Gutman
Ward Bond
Detective Tom Polhaus
Jerome Cowan
Miles Archer
Elisha Cook Jr.
Wilmer Cook
James Burke
Luke
Murray Alper
Frank Richman
John Hamilton
District Attorney Bryan
Charles Drake
Reporter (uncredited)
