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Pedro Casablanc as Arthur Koestler |
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Ana del Arco as Gerda Grepp |
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Denis Rafter as Sir Peter Chalmers-Mitchell |
| Camera | César Hernando | Director of Photography |
| Directing | José Antonio Hergueta | Director |
| Writing | Regina Álvarez Lorenzo | Writer |
| Writing | José Antonio Hergueta | Writer |
| Production | José Antonio Hergueta | Producer |
| Production | Leticia Salvago | Producer |
| Sound | Isabel Royán | Music |
