| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur P. Schmidt | Crew | Editing | Editor |
Edward T. Lowe Jr. | Crew | Production | Associate Producer |
Ernst Fegté | Crew | Art | Art Direction |
 Friedrich Hollaender | Crew | Sound | Original Music Composer |
Hans Dreier | Crew | Art | Art Direction |
Horace McCoy | Crew | Writing | Screenplay |
 J. Edgar Hoover | Crew | Writing | Book |
 James P. Hogan | Crew | Directing | Director |
 John Leipold | Crew | Sound | Original Music Composer |
 Theodor Sparkuhl | Crew | Camera | Director of Photography |
William LeBaron | Crew | Production | Executive Producer |
 William R. Lipman | Crew | Writing | Screenplay |
 Billy Gilbert | Cast | Actor | Mr. Reier |
 Blanche Yurka | Cast | Actress | Ma Webster |
 Charles Lane | Cast | Actor | Horace Grimley |
 Charles R. Moore | Cast | Actor | Cocktail Party Butler |
 Charlotte Wynters | Cast | Actress | Mrs. Grimley |
 Edward Gargan | Cast | Actor | Bank Guard |
 Frank M. Thomas | Cast | Actor | Doctor |
 Harry C. Bradley | Cast | Actor | Lawyer |
 Hedda Hopper | Cast | Actress | Mrs. Emily Sturgis |
 J. Carrol Naish | Cast | Actor | George Frost |
 Jack Carson | Cast | Actor | Agent Ross Waring |
 James Flavin | Cast | Actor | Third FBI Director |
 James Seay | Cast | Actor | Eddie Webster |
 Jeanne Cagney | Cast | Actress | Ethel Webster (as Jean Cagney) |
John Laing | Cast | Bank Customer | |
 John Miljan | Cast | Actor | Pan |
Laura Treadwell | Cast | Society Matron | |
 Leona Roberts | Cast | Actress | Mrs. Greenough |
 Lloyd Corrigan | Cast | Actor | C. Jason - Photographer |
 Mary Gordon | Cast | Actress | Tenement Landlady |
 Mary Treen | Cast | Actress | Billy's Nurse |
 Neil Hamilton | Cast | Actor | First FBI Chief |
 Paul Kelly | Cast | Actor | Tom Webster |
 Paul Stanton | Cast | Actor | Mr. Edmonds - Bank Manager |
 Ralph Bellamy | Cast | Actor | Agent Scott Langham |
 Raymond Hatton | Cast | Actor | Herb - Auto Camp Proprietor |
 Richard Denning | Cast | Actor | Charlie Webster |
 Robert Ryan | Cast | Actor | Jim |
 Roy Gordon | Cast | Actor | Mr. Milliken |
 Sheila Ryan | Cast | Actress | Party Girl |
 William Henry | Cast | Actor | Bert Webster |
 Sonny Bupp | Cast | Actor | Newsboy |
 Howard M. Mitchell | Cast | Actor | Streetcorner Santa |
Herbert Naish | Cast | Newsboy | |
Tommy Conley | Cast | Billy Webster | |
| Person | Type | Job | Role(s) |
