

Samuel Spade

Brigid O'Shaughnessy

Iva Archer

Joel Cairo

Lt. of Detectives Dundy

Effie Perine

Kasper Gutman

Det. Tom Polhaus

Miles Archer

Wilmer Cook

Luke

Frank Richman

District Attorney Bryan

Reporter (uncredited)

Bit Part (uncredited)

Stenographer (uncredited)

Policeman (uncredited)

Reporter (uncredited)

Captain Jacoby (uncredited)

Reporter (uncredited)

Announcer (uncredited)

Ship's Mate (uncredited)