Humphrey Bogart (Eddie Willis), Rod Steiger (Nick Benko), Jan Sterling (Beth Willis), Mike Lane (Toro Moreno), Max Baer (Buddy Brannen), Jersey Joe Walcott (George), Edward Andrews (Jim Weyerhause), Harold J. Stone (Art Leavitt), Abel Fernandez (Chief Firebird), Carlos Montalban (Luís Agrandi), Nehemiah Persoff (Leo), Felice Orlandi (Vince Fawcett), Herbie Faye (Max), Rusty Lane (Danny McKeogh), Jack Albertson (Pop), Val Avery (Frank), Emily Belser (Reporter), Marian Carr (Alice), Tina Carver (Mrs. Benko), Pat Comiskey (Gus Dundee), Lillian Culver (Mrs. Wilson Harding), Jack Daly (Reporter), Patricia Dane (Shirley), Vinnie De Carlo (Joey), Elaine Edwards (Vinces Freundin), Ralph Gamble (Reporter), Everett Glass (Minister), Tommy Herman (Tommy), William H. O'Brien (Ringsider)