Character Name : Lewis 'Mountain' Rivera

Original Name : Anthony Quinn

Gender : Male

Character Name : Maish Rennick

Original Name : Jackie Gleason

Gender : Male

Character Name : Army

Original Name : Mickey Rooney

Gender : Male

Character Name : Grace Miller

Original Name : Julie Harris

Gender : Female

Character Name : Perelli (as Stan Adams)

Original Name : Stanley Adams

Gender : Male

Character Name : Ma Greeny

Original Name : Madame Spivy

Gender : Female

Character Name : Young fighter's promoter

Original Name : Val Avery

Gender : Male

Character Name : Charlie, the Bartender

Original Name : Herbie Faye

Gender : Male

Character Name : Himself

Original Name : Jack Dempsey

Gender : Male

Character Name : Himself (as Cassius Clay)

Original Name : Muhammad Ali

Gender : Male

Character Name : Dr. Gilbert

Original Name : Lou Gilbert

Gender : Male

Character Name : Ma Greeny's Thug

Original Name : Michael Conrad

Gender : Male

Character Name : Himself

Original Name : Rory Calhoun

Gender : Male

Character Name :

Original Name : Barney Ross

Gender : Male

Character Name :

Original Name : Willie Pep

Gender : Male

Character Name : Hotel Desk Clerk

Original Name : Steve Belloise

Gender : Male

Character Name :

Original Name : Abe Simon

Gender : Male

Character Name :

Original Name : Stan Ross

Gender : Male

Character Name :

Original Name : J.J. Ballargeon

Gender : Male

Character Name :

Original Name : Paolo Rosi

Gender : Male

Character Name :

Original Name : Alex Miteff

Gender : Male

Character Name :

Original Name : Gus Lesnevich

Gender : Male

Character Name : Police Officer (uncredited)

Original Name : Al Bain

Gender : Male

Character Name : Self - Rivera's wrestling opponent (uncredited)

Original Name : William Calhoun

Gender : Male

Character Name : Woman on Elevator (uncredited)

Original Name : Nancy Cushman

Gender : Female

Character Name : Diner Patron (uncredited)

Original Name : Sig Frohlich

Gender : Male

Character Name : Barfly Watching TV (uncredited)

Original Name : John Indrisano

Gender : Male

Character Name : Referee (uncredited)

Original Name : Arthur M. Mercante

Gender : Male

Character Name : Midget Wrestler Outside Wrestling Ring (uncredited)

Original Name : Angelo Rossitto

Gender : Male

Character Name : Self - Trailor Narrator (uncredited)

Original Name : David Susskind

Gender : Male