Trailer
 | Laura La Plante as Olga 'The Midnight Sun' Morova |
 | Pat O'Malley as Grand Duke Sergius of Russia |
 | Michael Vavitch as Duke's Adjutant |
 | Raymond Keane as Alexei Orloff - Russian Officer |
 | Earl Metcalfe as Nicolai Orloff |
 | George Siegmann as Ivan Kusmin - Banker |
 | Arthur Hoyt as Yessky - Kusmin's Secretary |
 | Medea Radzina as Anisya - Olga's Companion |
| Nicholas Soussanin as Duke's Aide |
 | Cesare Gravina as Opera Director |
 | Nina Romano as Barbara |
 | Albert Prisco as Messenger |
 | George B. Williams as Ruined Banker |
 | Yola d'Avril |
 | Max Barwyn as Maitre D' |
 | Sayre Dearing as Young Russian Officer |
 | Louis Mercier as Russian Dissident |
 | Phillips Smalley as Card Player |
| Directing | |
| Dimitri Buchowetzki | Director |
Writing | |
| Pierre Benoît | Novel |
| A.P. Younger | Writer |
| 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 |
