Burt Lancaster character J.J. Hunsecker
Tony Curtis character Sidney Falco
Susan Harrison character Susan Hunsecker
Martin Milner character Steve Dallas
Sam Levene character Frank D' Angelo
Barbara Nichols character Rita
David White character Otis Elwell
Jeff Donnell character Sally
Edith Atwater character Mary
Joe Frisco character Herbie Temple
Emile Meyer character Lt. Harry Kello
Bess Flowers character Patron at '21'
Colin Kenny character Patron at 21 (uncredited)
Lawrence Dobkin character Leo Bartha
John Fiedler character Counterman at Hotdog Stand
Bert Stevens character Patron at 21
Arthur Tovey character Elysian Club Patron
William H. O'Brien character Waiter at 21 (uncredited)