On screen
Cast
30 credited performers
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
Muhammad Ali
Himself (as Cassius Clay)
Lou Gilbert
Dr. Gilbert
Michael Conrad
Ma Greeny's Thug
Rory Calhoun
Himself
Artwork unavailable
Barney Ross
Character not listed
Artwork unavailable
Willie Pep
Character not listed
Artwork unavailable
Steve Belloise
Hotel Desk Clerk
Artwork unavailable
Abe Simon
Character not listed
Artwork unavailable
Stan Ross
Character not listed
Artwork unavailable
J.J. Ballargeon
Character not listed
Paolo Rosi
Character not listed
Artwork unavailable
Alex Miteff
Character not listed
Artwork unavailable
Gus Lesnevich
Character not listed
Al Bain
Police Officer (uncredited)
Artwork unavailable
William Calhoun
Self - Rivera's wrestling opponent (uncredited)
Artwork unavailable
Nancy Cushman
Woman on Elevator (uncredited)
Artwork unavailable
Sig Frohlich
Diner Patron (uncredited)
Artwork unavailable
John Indrisano
Barfly Watching TV (uncredited)
Artwork unavailable
Arthur M. Mercante
Referee (uncredited)
Angelo Rossitto
Midget Wrestler Outside Wrestling Ring (uncredited)
David Susskind
Self - Trailor Narrator (uncredited)