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Lee Parry as Lee Forbes |
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Joop van Hulzen as Dr. John Forbes |
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Henry Stuart as Will Carry, ein Sportmäzen |
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Valerie Boothby as Mary, Weltmeisterschwimmerin |
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Hans Adalbert Schlettow as Tom Wobber, Manager |
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Gerhard Ritterband as Robby, sein Gehilfe |
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Otto Kronburger as Peter Stanley, Freund von John und Lee |
| Writing | Jane Bess | Writer |
| Writing | Bobby E. Lüthge | Writer |
| Directing | Erich Waschneck | Director |
| Production | Erich Waschneck | Producer |
| Sound | Pasquale Perris | Music |
| Camera | Friedl Behn-Grund | Director of Photography |
| Art | Robert A. Dietrich | Art Direction |
| Production | Walter Lehmann | Production Manager |
