Edward Dmytryk Director Dick Powell Philip Marlowe Actor Claire Trevor Helen Grayle Actor Anne Shirley Ann Grayle Actor Otto Kruger Jules Amthor Actor Mike Mazurki Moose Malloy Actor Miles Mander Mr. Grayle Actor Douglas Walton Lindsay Marriott Actor Donald Douglas Police Lieutenant Randall Actor Ralf Harolde Dr. Sonderborg Actor Esther Howard Jessie Florian Actor John Indrisano Chauffeur Actor Jack Carr Dr. Sonderborg's Assistant Actor Shimen Ruskin Elevator Operator Actor Ernie Adams Bartender at 'Florian's' Actor Dewey Robinson New Boss at 'Florian's' Actor Larry Wheat Grayle's Butler Actor Sam Finn Headwaiter Actor Raymond Chandler Writer John Paxton Writer Sid Rogell Executive Producer Adrian Scott Producer Roy Webb Original Music Harry J. Wild Cinematographer Joseph Noriega Film Editing Carroll Clark Art Director Albert D'Agostino Art Director Michael Ohrenbach Set Decoration Darrell Silvera Set Decoration Edward Stevenson Costume Design