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Will Rogers as Hank Martin |
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William Farnum as King Arthur / Inventor |
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Frank Albertson as Emile le Poulet / Clarence |
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Maureen O'Sullivan as Alisande / Woman in Mansion |
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Brandon Hurst as Merlin / Doctor in Mansion |
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Myrna Loy as Queen Morgan le Fay / Evil Sister in Mansion |
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Mitchell Harris as Sagramor / Butler in Mansion |
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Stanley Blystone as King's Knight (uncredited) |
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Heinie Conklin as Sneezing Man at Radio Station (uncredited) |
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Louise Emmons as Old Hag in Dungeon (uncredited) |
| Directing | David Butler | Director |
| Writing | William M. Conselman | Writer |
| Writing | Owen Davis | Writer |
| Writing | Mark Twain | Novel |
| Camera | Ernest Palmer | Director of Photography |
| Editing | Irene Morra | Editor |
| Costume & Make-Up | Sophie Wachner | Costume Design |
| Art | William S. Darling | Art Direction |
| Sound | Joseph E. Aiken | Music |
| Costume & Make-Up | Sam Benson | Costume Design |
