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Jean-Pierre Kalfon as Alex Leclerc |
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Féodor Atkine as Charles Hughes, night watchman |
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Michèle Moretti as Hotel customer |
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Christine Datnowsky as Narrator (voice) |
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Dominique Laffin as Narrator (voice) |
| Crew | Maurice Goldring | Translator |
| Crew | André Téchiné | Scientific Consultant |
| Crew | Jacqueline Autrusseau | Translator |
| Directing | Frédéric Compain | Director |
| Writing | Eugene O'Neill | Theatre Play |
| Crew | Jacqueline Autrusseau | Translator |
| Camera | Ricardo Aronovich | Director of Photography |
