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Seymour Hicks as Professor Heggie |
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Nancy O'Neil as Angela Heggie |
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Frederick Peisley as Jimmy Andrews |
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Gibson Gowland as Angus |
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Eric Hales as Jack Campbell |
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Ben Field as Piermaster |
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Hubert Harben as Prof. Blenkinsop Fothergill |
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Rosamund John as Maggie Fraser |
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Robb Wilton as Reporter |
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Fewlass Llewellyn as Scientist at Meeting |
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Stafford Hilliard as Macdonald (Uncredited) |
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Cyril McLaglen as Mate (Uncredited) |
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Clive Morton as Reporter (Uncredited) |
| Writing | Charles Bennett | Writer |
| Writing | Billie Bristow | Writer |
| Production | Bray Wyndham | Producer |
| Sound | Peter Mendoza | Music |
| Editing | David Lean | Editor |
| Directing | Milton Rosmer | Director |
| Camera | James Wilson | Director of Photography |
| Sound | Peter Mendoza | Original Music Composer |
