Anthony Quinn
Lewis 'Mountain' Rivera
                                    Jackie Gleason
Maish Rennick
                                    Mickey Rooney
Army
                                    Julie Harris
Grace Miller
                                    Stanley Adams
Perelli (as Stan Adams)
                                    Madame Spivy
Ma Greeny
                                    Val Avery
Young fighter's promoter
                                    Herbie Faye
Charlie, the Bartender
                                    Jack Dempsey
Himself
                                    Mohamed Ali
Himself (as Cassius Clay)
                                    Lou Gilbert
Dr. Gilbert
                                    Michael Conrad
Ma Greeny's Thug
                                    Rory Calhoun
Himself
Steve Belloise
Hotel Desk Clerk
                                    Al Bain
Police Officer (uncredited)
William Calhoun
Self - Rivera's wrestling opponent (uncredited)
Nancy Cushman
Woman on Elevator (uncredited)
Sig Frohlich
Diner Patron (uncredited)
John Indrisano
Barfly Watching TV (uncredited)
Arthur M. Mercante
Referee (uncredited)
                                    Angelo Rossitto
Midget Wrestler Outside Wrestling Ring (uncredited)
                                    David Susskind
Self - Trailor Narrator (uncredited)
Requiem pour un champion
Released
$ 1,100,000