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Laura La Plante as Olga 'The Midnight Sun' Morova |
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Pat O'Malley as Grand Duke Sergius of Russia |
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Michael Vavitch as Duke's Adjutant |
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Raymond Keane as Alexei Orloff - Russian Officer |
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Earl Metcalfe as Nicolai Orloff |
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George Siegmann as Ivan Kusmin - Banker |
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Arthur Hoyt as Yessky - Kusmin's Secretary |
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Medea Radzina as Anisya - Olga's Companion |
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Nicholas Soussanin as Duke's Aide |
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Cesare Gravina as Opera Director |
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Nina Romano as Barbara |
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Albert Prisco as Messenger |
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George B. Williams as Ruined Banker |
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Yola d'Avril as |
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Max Barwyn as Maitre D' |
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Sayre Dearing as Young Russian Officer |
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Louis Mercier as Russian Dissident |
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Phillips Smalley as Card Player |
| Directing | Dimitri Buchowetzki | Director |
| Writing | A.P. Younger | Writer |
| Writing | Pierre Benoît | Novel |
| Writing | Laurids Bruun | Story |
| Camera | Ernest F. Smith | Director of Photography |
| Costume & Make-Up | Alice O'Neill | Costume Designer |
| Production | John M. Voshell | Production Manager |
| Directing | William J. Cowen | Assistant Director |
| Crew | Carl Laemmle | Presenter |
