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Lillian Gish as Princess Alexandra |
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Rod La Rocque as Prince Albert |
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Conrad Nagel as Dr. Nicholas Haller |
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Marie Dressler as Princess Beatrice |
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O. P. Heggie as Father Benedict |
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Albert Conti as Count Lutzen |
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Edgar Norton as Colonel Wunderlich |
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Billie Bennett as Princess Sympharosa |
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Philippe De Lacy as Prince Georg |
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Byron Sage as Prince Arsene |
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Barbara Leonard as Mitzi |
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Russ Powell as Burgermeister of Rostenburg (uncredited) |
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Florence Wix as Party Guest (uncredited) |
| Directing | Paul L. Stein | Director |
| Writing | Melville Baker | Screenplay |
| Writing | Melville Baker | Adaptation |
| Writing | Maxwell Anderson | Adaptation |
| Writing | Ferenc Molnár | Theatre Play |
| Production | John W. Considine Jr. | Associate Producer |
| Art | William Cameron Menzies | Settings |
| Art | Park French | Set Dresser |
| Sound | Hugo Riesenfeld | Music Arranger |
| Editing | James Smith | Editor |
| Production | Joseph M. Schenck | Producer |
| Directing | Herbert Sutch | Assistant Director |
| Camera | Karl Struss | Director of Photography |
| Sound | Hugo Riesenfeld | Original Music Composer |
