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Mártha Eggerth as Steffi Piringer |
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Owen Nares as Rudi Muller |
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Wendy Barrie as Lucie Kleiner |
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George K. Arthur as Gustl Linzer |
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Gibb McLaughlin as Dr. Schilling |
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Ellis Jeffreys as Frau Kleiner |
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Robert Hale as Herr Piringer |
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O.B. Clarence as Dr. Peffer |
| Sound | Franz Lehár | Music |
| Camera | Walter Blakeley | Director of Photography |
| Sound | Kurt Schröder | Music Director |
| Production | John Stafford | Producer |
| Writing | Sydney Blow | Writer |
| Writing | John Stafford | Writer |
| Directing | Victor Hanbury | Director |
| Directing | Ladislao Vajda | Director |
| Writing | Billy Wilder | Story |
