Humphrey Bogart as Dixon Steele

Gloria Grahame as Laurel Gray

Frank Lovejoy as Brub Nicolai

Carl Benton Reid as Capt. Lochner

Art Smith as Mel Lippman

Jeff Donnell as Sylvia Nicolai

Martha Stewart as Mildred Atkinson

Robert Warwick as Charlie Waterman

Morris Ankrum as Lloyd Barnes

William Ching as Ted Barton

Steven Geray as Paul

Hadda Brooks as Singer

Alix Talton as Frances Randolph (uncredited)

James Arness as Young Detective (uncredited)

Pat Barton as Second Hat Check Girl (uncredited)

Guy Beach as Mr. Swan (uncredited)

David Bond as Dr. Richards (uncredited)

Hazel Boyne as Woman (uncredited)

Laura K. Brooks as Lady Wanting Matches (uncredited)

Charles Cane as Angry Husband in Convertible (uncredited)

Jack Chefe as Bartender (uncredited)

Oliver Cross as Person (uncredited)

George Davis as Waiter (uncredited)

Melinda Erickson as Tough Girl (uncredited)

Charles Fogel as Bar Patron (uncredited)

Arno Frey as Joe (uncredited)

Ruth Gillette as Martha (uncredited)

Billy Gray as Young Boy Seeking Autograph (uncredited)

Joy Hallward as Woman (uncredited)

Myron Healey as Post Office Clerk (uncredited)

Lewis Howard as Junior (uncredited)

Jack Jahries as Officer (uncredited)

Mike Lally as Bar Patron (uncredited)

Tony Layng as Man (uncredited)

Mark Lowell as Airline Clerk (uncredited)

Frank Marlowe as Dave (uncredited)

Harold Miller as Nightclub Patron (uncredited)

John Mitchum as Bar Patron (uncredited)

George Nardelli as Nightclub Patron (uncredited)

Allen Pinson as Man (uncredited)

Jack Reynolds as Henry Kesler (uncredited)

Davis Roberts as Flower Shop Employee (uncredited)

Michael Romanoff as Prince Romanoff (uncredited)

Jack Santoro as Man (uncredited)

Cosmo Sardo as Bartender (uncredited)

Evelyn Underwood as Woman (uncredited)

June Vincent as Actress In Convertible (uncredited)

Ruth Warren as Effie (uncredited)