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H.B. Warner as Prof. Dangerfield |
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Louise Fazenda as Mrs. Fleming |
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Жаклин Логан as Irene |
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Henry B. Walthall as Capt. Rhodes - Yacht Commander |
 |
Claude Gillingwater as James Rutherford - Expedition Leader |
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John Miljan as Dr. Milo |
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George Beranger as Simpson - Guide |
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Warner Richmond as First Mate |
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Floyd Shackelford as Sam - Cook |
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Lionel Belmore as Amos Sewald |
 |
Charles Gemora as Gorilla (uncredited) |
| Directing | Lloyd Bacon | Director |
| Writing | Harvey Gates | Scenario Writer |
| Writing | Jerome Kingston | Story |
| Writing | Harvey Gates | Dialogue |
