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Gladys Swarthout as Ilona Boros |
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John Boles as Antal Kovach |
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John Barrymore as Zoltan Jason |
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Claire Dodd as Countess Monica Foldesay |
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Fritz Feld as Fritz |
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Curt Bois as Von Hemisch |
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Carlos De Valdez as Ballot |
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Torben Meyer as Prof. Jacobsen |
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Margaret Randall as Kovach's Maid (as Marguerite Franz) |
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Fortunio Bonanova as Tenor |
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Esther Muir as Prima Donna |
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Eddie Conrad as Barber (as Eddy Conrad) |
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Carole Mathews as |
| Production | Harlan Thompson | Producer |
| Production | William LeBaron | Executive Producer |
| Sound | John Leipold | Music |
| Sound | Victor Young | Music |
| Camera | William C. Mellor | Director of Photography |
| Editing | Archie Marshek | Editor |
| Editing | James Smith | Editor |
| Art | Hans Dreier | Art Direction |
| Art | A. Earl Hedrick | Art Direction |
| Costume & Make-Up | Travis Banton | Costume Design |
| Directing | Hal Walker | Assistant Director |
| Sound | T.A. Carman | Sound |
| Sound | Howard Wilson | Sound |
| Sound | Harry D. Mills | Sound Mixer |
| Directing | H. C. Potter | Director |
| Writing | Hermann Bahr | Theatre Play |
| Writing | Anne Morrison Chapin | Writer |
| Writing | Frank Partos | Writer |