The cunning Cardinal Richelieu must save King Louis XIII from treachery within his inner circle.
| Directing | Rowland V. Lee | Director |
| Writing | Edward George Bulwer-Lytton | Theatre Play |
| Writing | Cameron Rogers | Adaptation |
| Writing | Maude T. Howell | Screenplay |
| Writing | W.P. Lipscomb | Dialogue |
| Writing | Nunnally Johnson | Writer |
| Production | Darryl F. Zanuck | Producer |
| Art | Richard Day | Art Direction |
| Costume & Make-Up | Omar Kiam | Costume Design |
| Directing | Ben Silvey | Assistant Director |
| Sound | Roger Heman Sr. | Sound Engineer |
| Sound | Vinton Vernon | Sound Engineer |
| Camera | J. Peverell Marley | Director of Photography |
| Sound | Alfred Newman | Original Music Composer |
| Directing | William Forsyth | Second Assistant Director |
