| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur J. Ornitz | Crew | Camera | Director of Photography |
Carl Lerner | Crew | Editing | Editor |
David Golden | Crew | Production | Production Manager |
 David Susskind | Crew | Production | Producer |
 Dick Smith | Crew | Costume & Make-Up | Makeup Artist |
Jack Grossberg | Crew | Production | Associate Producer |
John Boxer | Crew | Costume & Make-Up | Costume Design |
 Laurence Rosenthal | Crew | Sound | Original Music Composer |
 Ralph Nelson | Crew | Directing | Director |
 Rod Serling | Crew | Writing | Writer, Screenplay |
Winifred Leah Laurance | Crew | Directing | Script Supervisor |
Nathaniel Burr Smidt | Crew | Art | Production Design |
Abe Simon | Cast | ||
 Angelo Rossitto | Cast | Actor | Midget Wrestler Outside Wrestling Ring (uncredited) |
 Anthony Quinn | Cast | Actor | Lewis 'Mountain' Rivera |
David Susskind | Cast | Actor | Self - Trailor Narrator (uncredited) |
 Herbie Faye | Cast | Actor | Charlie, the Bartender |
 Jack Dempsey | Cast | Actor | Himself |
 Jackie Gleason | Cast | Actor | Maish Rennick |
 John Indrisano | Cast | Actor | Barfly Watching TV (uncredited) |
 Julie Harris | Cast | Actress | Grace Miller |
 Lou Gilbert | Cast | Actor | Dr. Gilbert |
 Madame Spivy | Cast | Actress | Ma Greeny |
 Michael Conrad | Cast | Actor | Ma Greeny's Thug |
 Mickey Rooney | Cast | Actor | Army |
 Muhammad Ali | Cast | Actor | Himself (as Cassius Clay) |
Nancy Cushman | Cast | Actress | Woman on Elevator (uncredited) |
 Rory Calhoun | Cast | Actor | Himself |
Sig Frohlich | Cast | Actor | Diner Patron (uncredited) |
Stan Ross | Cast | Actor | |
 Stanley Adams | Cast | Actor | Perelli (as Stan Adams) |
 Val Avery | Cast | Actor | Young fighter's promoter |
 Al Bain | Cast | Actor | Police Officer (uncredited) |
Steve Belloise | Cast | Actor | Hotel Desk Clerk |
Willie Pep | Cast | Actor | |
 Arthur M. Mercante | Cast | Actor | Referee (uncredited) |
 Barney Ross | Cast | ||
 William Calhoun | Cast | Actor | Self - Rivera's wrestling opponent (uncredited) |
J.J. Ballargeon | Cast | ||
Gus Lesnevich | Cast | ||
Alex Miteff | Cast | ||
| Person | Type | Job | Role(s) |
