Director/a
Ralph Nelson
DIRECTOR/A
Reparto (por orden de créditos)
Anthony Quinn
Louis 'Mountain' Rivera
Jackie Gleason
Maish Rennick
Mickey Rooney
Army
Julie Harris
Grace Miller
Stanley Adams
Perelli
Madame Spivy
Ma Greeny
Val Avery
Young fighter's promoter
Herbie Faye
Charlie, the Bartender
Jack Dempsey
Boxer Jack Dempsey
Barney Ross
ACTOR
Alex Miteff
Rory Calhoun
Self
Muhammad Ali
Boxer Cassius Clay
Gus Lesnevich
Willie Pep
Steve Belloise
Hotel Desk Clerk
J.J. Ballargeon
Paoli Rossi
Michael Conrad
Ma Greeny's Thug
Abe Simon
Stan Ross
Lou Gilbert
Ring Doctor Dr. Gilbert
Al Bain
Police Officer (uncredited)
William 'Haystacks' Calhoun
Haystacks - Rivera's wrestling opponent (uncredited)
Nancy Cushman
Woman on Elevator (uncredited)
Sig Frohlich
Diner Patron (uncredited)
John Indrisano
Barfly Watching TV (uncredited)
Arthur Mercante
Box Referee (uncredited)
Angelo Rossitto
Midget Wrestler Outside Wrestling Ring (uncredited)