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Lucille Ball as Margaret Weldon |
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Franchot Tone as William Weldon |
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Edward Everett Horton as J.B. Cruikshank |
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Mikhail Rasumny as Prof. Emil Glinka |
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Gene Lockhart as Peter Winterbottom |
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Nana Bryant as Mrs. Winterbottom |
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Jonathan Hale as Gov. Fox |
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Paul Stanton as Dr. Frazee |
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Mabel Paige as Mrs. Josper |
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Frank Mayo as Vice President Starrett |
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Pierre Watkin as Vice President Beitler |
| Directing | S. Sylvan Simon | Director |
| Writing | Ben Hecht | Writer |
| Writing | Charles Lederer | Writer |
| Camera | Charles Lawton Jr. | Director of Photography |
| Editing | Al Clark | Editor |
| Art | Stephen Goosson | Art Direction |
| Art | Carl Anderson | Art Direction |
| Art | Wilbur Menefee | Set Decoration |
| Art | Louis Diage | Set Decoration |
| Directing | Earl McEvoy | Assistant Director |
| Costume & Make-Up | Jean Louis | Costume Design |
| Costume & Make-Up | Clay Campbell | Makeup Artist |
| Costume & Make-Up | Helen Hunt | Hairstylist |
| Sound | Frank Goodwin | Sound Recordist |
| Sound | George Duning | Original Music Composer |
| Sound | Morris Stoloff | Music Director |
| Production | Raphael Hakim | Producer |
