| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alice Monte | Crew | Costume & Make-Up | Hairdresser |
Allen K. Wood | Crew | Production | Production Supervisor |
Bert Henrikson | Crew | Costume & Make-Up | Wardrobe Designer |
Burnett Guffey | Crew | Camera | Director of Photography |
Cary Odell | Crew | Art | Art Direction |
Charlsie Bryant | Crew | Directing | Script Supervisor |
David Weisbart | Crew | Production | Producer |
Edward G. Boyle | Crew | Art | Set Decoration |
 Jeff Alexander | Crew | Sound | Original Music Composer |
Lambert E. Day | Crew | Sound | Sound |
Lynn F. Reynolds | Crew | Costume & Make-Up | Makeup Artist |
Marshall M. Borden | Crew | Editing | Assistant Editor |
Milt Rice | Crew | Crew | Special Effects |
Mushy Callahan | Crew | Crew | Technical Advisor |
 Phil Karlson | Crew | Directing | Director |
Robert E. Relyea | Crew | Production | Unit Production Manager |
Robert Tracy | Crew | Sound | Music Editor |
Stuart Gilmore | Crew | Editing | Editor |
 Tom Parker | Crew | Crew | Technical Advisor |
 Walter Mirisch | Crew | Production | Executive Producer |
Francis Wallace | Crew | Writing | Story |
Del Harris | Crew | Sound | Sound Effects Editor |
Jerome M. Siegel | Crew | Directing | Assistant Director |
Frank Agnone | Crew | Art | Property Master |
William Fay | Crew | Writing | Screenplay |
Eugene Busch | Crew | Crew | Dialogue Coach |
Irene Caine | Crew | Costume & Make-Up | Wardrobe Designer |
Al Haskell | Cast | Fight Spectator (uncredited) | |
 Al Silvani | Cast | Actor | Training Camp Spectator (uncredited) |
 Bert Remsen | Cast | Actor | Max (uncredited) |
 Bill Zuckert | Cast | Actor | O'Grady (uncredited) |
 Charles Bronson | Cast | Actor | Lew Nyack |
 Charles Sherlock | Cast | Actor | Bailey's Handler (uncredited) |
 Chris Alcaide | Cast | Actor | Danzig Hood (uncredited) |
 David Lewis | Cast | Actor | Otto Danzig |
 Ed Asner | Cast | Actor | Assistant District Attorney Frank Gerson (uncredited) |
 Elvis Presley | Cast | Actor | Walter Gulick |
 Frank Gerstle | Cast | Actor | Romero's Manager (uncredited) |
 George J. Lewis | Cast | Actor | Romero's Trainer (uncredited) |
 Gig Young | Cast | Actor | Willy Grogan |
Gil Perkins | Cast | Actor | Freddie (uncredited) |
 Harry Wilson | Cast | Actor | Bailey Fight Spectator (uncredited) |
 Jeff Morris | Cast | Actor | Ralphie (as Jeffrey Morris) |
 Jeffrey Sayre | Cast | Actor | Bevis (uncredited) |
 Jimmie Horan | Cast | Actor | Fight Spectator (uncredited) |
 Joan Blackman | Cast | Actress | Rose Grogan |
Joe Gray | Cast | Trainer (uncredited) | |
 Judson Pratt | Cast | Actor | Howie Zimmerman |
Kip King | Cast | Actor | Round Card Man at Romero Fight (uncredited) |
 Liam Redmond | Cast | Actor | Father Higgins |
 Lola Albright | Cast | Actress | Dolly Fletcher |
 Michael Dante | Cast | Actor | Joie Shakes |
Mushy Callahan | Cast | Romero Fight Referee (uncredited) | |
 Ned Glass | Cast | Actor | Max Lieberman |
 Nick Dimitri | Cast | Actor | Boxer (uncredited) |
 Ralph Moody | Cast | Actor | Peter J. Prohosko (uncredited) |
 Red West | Cast | Actor | Opponent (uncredited) |
 Richard Devon | Cast | Actor | Marvin |
 Robert Emhardt | Cast | Actor | Maynard |
 Roy Roberts | Cast | Actor | Jerry Bathgate |
 Sailor Vincent | Cast | Actor | Fight Cornerman (uncredited) |
 Duke Fishman | Cast | Actor | Fight Crowd Member (uncredited) |
| Person | Type | Job | Role(s) |
