| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bernard Herzbrun | Crew | Art | Art Direction |
 Bud Westmore | Crew | Costume & Make-Up | Makeup Artist |
 Charles Lamont | Crew | Directing | Director |
Daniele Amfitheatrof | Crew | Sound | Music |
 Frank Skinner | Crew | Sound | Music |
Frederic I. Rinaldo | Crew | Writing | Screenplay |
George Robinson | Crew | Camera | Director of Photography |
 H.G. Wells | Crew | Writing | Story |
Hans J. Salter | Crew | Sound | Music |
Howard Christie | Crew | Production | Producer |
Howard Snyder | Crew | Writing | Story |
Hugh Wedlock Jr. | Crew | Writing | Story |
Joan St. Oegger | Crew | Costume & Make-Up | Hairstylist |
John Grant | Crew | Writing | Screenplay |
John P. Austin | Crew | Art | Set Decoration |
 Johnny Green | Crew | Sound | Music |
Joseph Gershenson | Crew | Sound | Music Director |
Leslie I. Carey | Crew | Sound | Sound |
 Miklós Rózsa | Crew | Sound | Music |
Milton Rosen | Crew | Sound | Music |
Richard H. Riedel | Crew | Art | Art Direction |
Robert Lees | Crew | Writing | Screenplay |
Robert Pritchard | Crew | Sound | Sound |
Ronald R. Rondell | Crew | Directing | Assistant Director |
Russell A. Gausman | Crew | Art | Set Decoration |
 Virgil W. Vogel | Crew | Editing | Editor |
Walter Scharf | Crew | Sound | Music |
 William Lava | Crew | Sound | Music |
David S. Horsley | Crew | Visual Effects | Visual Effects |
Eric Zeisl | Crew | Sound | Music |
Ethmer Roten | Crew | Sound | Musician |
Roswell A. Hoffmann | Crew | Visual Effects | Visual Effects |
Ed Keyes | Crew | Art | Property Master |
 Adele Jergens | Cast | Actress | Boots Marsden |
 Arthur Franz | Cast | Actor | Tommy Nelson |
 Billy Wayne | Cast | Actor | Rooney - Rocky's Manager (uncredited) |
Bing Conley | Cast | Trainer (uncredited) | |
Bobby Hale | Cast | Graduation Spectator (uncredited) | |
 Bobby Barber | Cast | Actor | Sneaky (uncredited) |
Brick Sullivan | Cast | Actor | Dugan Detective School Graduate (uncredited) |
 Bud Abbott | Cast | Actor | Bud Alexander |
 Carl Sklover | Cast | Actor | Lou's Handler (uncredited) |
 Chester Conklin | Cast | Actor | Counter Man (uncredited) |
 Dick Gordon | Cast | Actor | Man (uncredited) |
Donald Kerr | Cast | Actor | Fight Spectator (uncredited) |
 Edward Gargan | Cast | Actor | Milt (uncredited) |
 Frank Dae | Cast | Col. Duffie (uncredited) | |
Frankie Van | Cast | Referee (uncredited) | |
Franklin Parker | Cast | Actor | Photographer (uncredited) |
 Gavin Muir | Cast | Actor | Dr. Philip Gray |
 George J. Lewis | Cast | Actor | Torpedo Al (uncredited) |
Hans Moebus | Cast | Actor | Restaurant Patron (uncredited) |
 Harold Goodwin | Cast | Actor | Bartender (uncredited) |
 Herb Vigran | Cast | Actor | Stillwell (uncredited) |
Howard Banks | Cast | Actor | Officer (uncredited) |
Jack Deery | Cast | Actor | Hospital Visitor (uncredited) |
 Jack Perrin | Cast | Actor | Dugan Detective School Graduate (uncredited) |
 Jack Perry | Cast | Actor | Rocky's Handler (uncredited) |
Jack Shutta | Cast | Attendant (uncredited) | |
 James Dime | Cast | Actor | Man in Gym (uncredited) |
John Breen | Cast | Actor | Trainer (uncredited) |
 John Daheim | Cast | Actor | Rocky Hanlon |
 Kenner G. Kemp | Cast | Actor | Policeman (uncredited) |
 Kit Guard | Cast | Actor | Fighter on Rowing Machine (uncredited) |
 Lou Costello | Cast | Actor | Lou Francis |
 Mathew McCue | Cast | Actor | Graduation Spectator (uncredited) |
 Monty O'Grady | Cast | Actor | Fight Spectator (uncredited) |
 Nancy Guild | Cast | Actress | Helen Gray |
Paul Cristo | Cast | Actor | Fight Spectator (uncredited) |
 Paul Maxey | Cast | Actor | Dr. Turner (uncredited) |
Perc Launders | Cast | Actor | Cop (uncredited) |
 Ralph Brooks | Cast | Actor | Man at Bar (uncredited) |
 Ralph Dunn | Cast | Actor | Motorcycle Cop (uncredited) |
Ralph Montgomery | Cast | Actor | Photographer (uncredited) |
Richard Bartell | Cast | Bald Man (uncredited) | |
 Rory Mallinson | Cast | Actor | Tough Guy in Bar (uncredited) |
Roy Darmour | Cast | Man (uncredited) | |
 Russ Conway | Cast | Actor | Newspaperman (uncredited) |
Sam Balter | Cast | Radio Announcer | |
 Sayre Dearing | Cast | Actor | Reporter (uncredited) |
 Sheldon Leonard | Cast | Actor | Boots Morgan |
 Steve Carruthers | Cast | Actor | Reporter (uncredited) |
 Stuart Holmes | Cast | Actor | Fight Spectator (uncredited) |
 Syd Saylor | Cast | Actor | Waiter (uncredited) |
Tom Coleman | Cast | Actor | Dugan Detective School Graduate (uncredited) |
Victor Romito | Cast | Actor | Waiter (uncredited) |
 William Frawley | Cast | Actor | Det. Roberts |
 William H. O'Brien | Cast | Actor | Fight Spectator (uncredited) |
George Ford | Cast | Reporter (uncredited) | |
 Chuck Hamilton | Cast | Actor | Policeman (uncredited) |
Sammy Shack | Cast | Fighter (uncredited) | |
Billy Snyder | Cast | Actor | Newspaperman (uncredited) |
Mike Morelli | Cast | Actor | Training Spectator (uncredited) |
Clark Ross | Cast | Actor | Fight Spectator (uncredited) |
Phil Bloom | Cast | Fight Spectator (uncredited) | |
Johnny Kern | Cast | Trainer (uncredited) | |
Milt Bronson | Cast | Ring Announcer (uncredited) | |
Walter F. Appler | Cast | Professor Dugan (uncredited) | |
Edith Sheet | Cast | Nurse (uncredited) | |
| Person | Type | Job | Role(s) |
