 | Monte Blue als Dr. Paul Giraud |
 | Patsy Ruth Miller als Mme. Suzanne Giraud |
 | Lilyan Tashman als Mme. Georgette Lalle, A Dancer |
 | George Beranger als M. Maurice Lalle, Georgette's Husband (as André Beranger) |
 | Max Barwyn als French Detective |
 | Sidney D'Albrook als French Police Officer (uncredited) |
 | Dot Farley als Madame Moreau (uncredited) |
 | Myrna Loy als Lalle's Maid (uncredited) |
| Ernst Lubitsch | Director |
| Harold Grieve | Set Designer |
| Ludovic Halévy | Theatre Play |
| George Hippard | Assistant Director |
| Henri Meilhac | Theatre Play |
| Ernst Laemmle | Assistant Director |
| Hanns Kräly | Adaptation |
| Darryl F. Zanuck | Producer |
| John J. Mescall | Director of Photography |
| Rob Wagner | Title Designer |
| Robert E. Hopkins | Title Designer |
| Victor R. Vance | Title Illustration |
| F.N. Murphy | Special Effects |
| Bert Shipman | Assistant Camera |
