 | Clifton Webb als John Frederick Shadwell |
 | Dorothy McGuire als Miss Frances |
 | Jean Peters als Anita Hutchins |
 | Louis Jourdan als Prince Dino di Cessi |
 | Maggie McNamara als Maria Williams |
 | Rossano Brazzi als Georgio Bianchi |
 | Howard St. John als Burgoyne |
 | Kathryn Givney als Mrs. Burgoyne |
 | Cathleen Nesbitt als Principessa |
 | Gino Corrado als Principessa's Butler (uncredited) |
 | Celia Lovsky als Baroness (uncredited) |
 | Luciana Paluzzi als Angela Bianchi (uncredited) |
 | Norma Varden als Woman at Cocktail Party (uncredited) |
| John Patrick | Screenplay |
| John H. Secondari | Novel |
| Jean Negulesco | Director |
| Milton Krasner | Director of Photography |
| Victor Young | Original Music Composer |
| John DeCuir | Art Direction |
| Sol C. Siegel | Producer |
| Lyle R. Wheeler | Art Direction |
| William Reynolds | Editor |
| Walter M. Scott | Set Decoration |
| Paul S. Fox | Set Decoration |
| Eugene Grossman | Sound |
| Roger Heman Sr. | Sound |
| Ben Nye | Makeup Artist |
| Edward B. Powell | Orchestrator |
| Dorothy Jeakins | Costume Design |
| Charles LeMaire | Wardrobe Supervisor |
