| Person | Type | Job | Role(s) |
|---|---|---|---|
 Barbara McLean | Crew | Editing | Editor |
 Booth McCracken | Crew | Production | Unit Manager |
 Darryl F. Zanuck | Crew | Production | Producer |
Eugene Grossman | Crew | Sound | Sound |
 Henry King | Crew | Directing | Director |
J. Peverell Marley | Crew | Camera | Director of Photography |
Kenneth Macgowan | Crew | Production | Associate Producer |
 Lamar Trotti | Crew | Writing | Screenplay |
 Louis Silvers | Crew | Sound | Music Director |
 Niven Busch | Crew | Writing | Story |
Robert D. Webb | Crew | Directing | Assistant Director |
Roger Heman Sr. | Crew | Sound | Sound |
Royer | Crew | Costume & Make-Up | Costume Design |
Rudolph Sternad | Crew | Art | Art Direction |
 Sonya Levien | Crew | Writing | Screenplay |
Thomas Little | Crew | Art | Set Decoration |
William S. Darling | Crew | Art | Art Direction |
 Yakima Canutt | Crew | Crew | Stunts |
 Alice Brady | Cast | Actress | Molly O'Leary |
 Alice Faye | Cast | Actress | Belle Fawcett |
 Andy Devine | Cast | Actor | Pickle Bixby |
 Bert Moorhouse | Cast | Actor | Opening Night Guest (uncredited) |
 Berton Churchill | Cast | Actor | Senator Colby |
 Bess Flowers | Cast | Actress | Woman with Colby (uncredited) |
Billy Watson | Cast | Actor | Jack O'Leary (as a boy) |
Bob Murphy | Cast | Actor | Police Officer |
 Bobs Watson | Cast | Actor | Bob O'Leary (as a boy) |
 Brian Donlevy | Cast | Actor | Gil Warren |
 Brooks Benedict | Cast | Actor | Courtroom Spectator (uncredited) |
 Clarence Wilson | Cast | Actor | Lawyer |
 Don Ameche | Cast | Actor | Jack O'Leary |
 Eddie Collins | Cast | Actor | Drunk |
 Francis Ford | Cast | Actor | Driver |
 Frank Dae | Cast | Judge | |
 Gene Reynolds | Cast | Actor | Dion O'Leary (as a boy) |
 George Chandler | Cast | Actor | Onlooker (uncredited) |
 Gustav von Seyffertitz | Cast | Actor | Dutch - Politician in Jack's Office |
 Harry Stubbs | Cast | Actor | Fire Commissioner |
 J. Anthony Hughes | Cast | Actor | Pat O'Leary |
 Joe King | Cast | Actor | Ship's Captain |
Joe Twerp | Cast | Actor | Stuttering Clerk |
 June Storey | Cast | Actress | Gretchen |
 Madame Sul-Te-Wan | Cast | Actress | Hattie |
 Paul Hurst | Cast | Actor | Mitch |
 Phyllis Brooks | Cast | Actress | Ann Colby |
 Rondo Hatton | Cast | Actor | Rondo - Body Guard |
 Russell Hicks | Cast | Actor | Politician in Jack's Office |
 Ruth Gillette | Cast | Actress | Miss Lou |
Scotty Mattraw | Cast | Beef King | |
 Sidney Blackmer | Cast | Actor | General Phil Sheridan |
 Spencer Charters | Cast | Actor | Commissioner W.J. Beavers |
 Tom Brown | Cast | Actor | Bob O'Leary |
 Tyler Brooke | Cast | Actor | Specialty Singer |
 Tyrone Power | Cast | Actor | Dion O'Leary |
 Vera Lewis | Cast | Actress | Wedding Witness (uncredited) |
 Wade Boteler | Cast | Actor | Police Officer |
 William H. O'Brien | Cast | Actor | Senate Waiter (uncredited) |
Thelma Manning | Cast | Carrie Donahue | |
| Person | Type | Job | Role(s) |
