- Peggy Knudsen - Mona Mars
- Charles D. Brown - Norris the Butler
- Bob Steele - Lash Canino
- Sonia Darrin - Agnes Lowzier (uncredited)
- Trevor Bardette - Art Huck (uncredited)
- Joy Barlow - Taxi Driver (uncredited)
- Max Barwyn - Max - Head Waiter (uncredited)
- Deannie Best - Waitress (uncredited)
- Tanis Chandler - Waitress (uncredited)
- Jack Chefe - Croupier (uncredited)
- James Conaty - Nightclub Patron (uncredited)
- Joseph Crehan - Medical Examiner (uncredited)
- Jack Deery - Nightclub Patron (uncredited)
- Jay Eaton - Casino Patron (uncredited)
- Tom Fadden - Sidney (uncredited)
- Bess Flowers - Woman with Bumped Man
- Kenneth Gibson - Casino Patron (uncredited)
- Joe Gilbert - Nightclub Patron (uncredited)
- Stuart Hall - Nightclub Patron (uncredited)
- Shep Houghton - Casino Patron (uncredited)
- Kenner G. Kemp - Nightclub Patron (uncredited)
- Pete Kooy - Motorcycle Cop (uncredited)
- Lorraine Miller - Hatcheck Girl (uncredited)
- Forbes Murray - Furtive Man (uncredited)
- William H. O'Brien - Waiter (uncredited)
- Shelby Payne - Cigarette Girl (uncredited)
- Jack Perry - Silent Thug Beating Marlowe (uncredited)
- Tommy Rafferty - Carol Lundgren (uncredited)
- Waclaw Rekwart - Nightclub Patron (uncredited)
- Edward Rickard - Nightclub Patron (uncredited)
- Jeffrey Sayre - Croupier (uncredited)
- Emmett Vogan - Ed - Deputy Sheriff (uncredited)
- Theodore von Eltz - Arthur Gwynn Geiger (uncredited)
- Wally Walker - Mars' Thug (uncredited)
- Dan Wallace - Owen Taylor (uncredited)
- Paul Weber - Mars' Thug (uncredited)
- Ben Welden - Pete (uncredited)
- Suzanne Ridgway - Nightclub Patron (uncredited)
- Howard Hawks
- Leigh Brackett
- Raymond Chandler
- William Faulkner
- Jack L. Warner
- Howard Hawks
- Max Steiner
- Leo F. Forbstein
Humphrey Bogart interpreta a Philip Marlowe en la película.
Lauren Bacall interpreta a Vivian Sternwood Rutledge en la película.
John Ridgely interpreta a Eddie Mars en la película.
Martha Vickers hace el papel de Carmen Sternwood.
Elisha Cook Jr. interpreta a Harry Jones en la película.
Charles Waldron interpreta a General Sternwood en la película.
Regis Toomey hace el papel de Chief Inspector Bernie Ohls.
Louis Jean Heydt interpreta a Joe Brody en la película.
Dorothy Malone interpreta a Acme Bookstore Proprietress en la película.
Peggy Knudsen hace el papel de Mona Mars.
Charles D. Brown interpreta a Norris the Butler en la película.
Bob Steele hace el papel de Lash Canino.
Sonia Darrin interpreta a Agnes Lowzier (uncredited) en la película.
Trevor Bardette interpreta a Art Huck (uncredited) en la película.
Joy Barlow interpreta a Taxi Driver (uncredited) en la película.
Max Barwyn hace el papel de Max - Head Waiter (uncredited).
Deannie Best interpreta a Waitress (uncredited) en la película.
Tanis Chandler hace el papel de Waitress (uncredited).
Jack Chefe interpreta a Croupier (uncredited) en la película.
James Conaty hace el papel de Nightclub Patron (uncredited).
Joseph Crehan interpreta a Medical Examiner (uncredited) en la película.
Jack Deery interpreta a Nightclub Patron (uncredited) en la película.
Jay Eaton interpreta a Casino Patron (uncredited) en la película.
Tom Fadden interpreta a Sidney (uncredited) en la película.
Bess Flowers hace el papel de Woman with Bumped Man.
Kenneth Gibson hace el papel de Casino Patron (uncredited).
Joe Gilbert hace el papel de Nightclub Patron (uncredited).
Stuart Hall interpreta a Nightclub Patron (uncredited) en la película.
Shep Houghton hace el papel de Casino Patron (uncredited).
Kenner G. Kemp interpreta a Nightclub Patron (uncredited) en la película.
Pete Kooy interpreta a Motorcycle Cop (uncredited) en la película.
Lorraine Miller hace el papel de Hatcheck Girl (uncredited).
Forbes Murray interpreta a Furtive Man (uncredited) en la película.
William H. O'Brien interpreta a Waiter (uncredited) en la película.
Shelby Payne interpreta a Cigarette Girl (uncredited) en la película.
Jack Perry hace el papel de Silent Thug Beating Marlowe (uncredited).
Tommy Rafferty interpreta a Carol Lundgren (uncredited) en la película.
Waclaw Rekwart interpreta a Nightclub Patron (uncredited) en la película.
Edward Rickard interpreta a Nightclub Patron (uncredited) en la película.
Jeffrey Sayre hace el papel de Croupier (uncredited).
Emmett Vogan hace el papel de Ed - Deputy Sheriff (uncredited).
Theodore von Eltz interpreta a Arthur Gwynn Geiger (uncredited) en la película.
Wally Walker interpreta a Mars' Thug (uncredited) en la película.
Dan Wallace interpreta a Owen Taylor (uncredited) en la película.
Paul Weber interpreta a Mars' Thug (uncredited) en la película.
Ben Welden hace el papel de Pete (uncredited).
Suzanne Ridgway hace el papel de Nightclub Patron (uncredited).
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