Directed by
| Denise Geilfus | ||
| Frédéric Geilfus | ||
Writing Credits (in alphabetical order)
| G.K. Chesterton | ... | (novel) |
| Raphael Cluzel | ... | (dialogue) |
| Raphael Cluzel | ... | (screenplay) |
| Denise Geilfus | ... | (dialogue) |
| Denise Geilfus | ... | (screenplay) |
Cast
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Fernand Abel | ... | Docteur Pym |
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Suzanne Colin | ... | Catherine |
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André Debaar | ... | Docteur Warner |
| Anna Gaël | ... | Marie | |
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Gisèle Oudaert | ... | Dyane |
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Jo Rensonnet | ... | Michel |
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Idwig Stéphane | ... | Arthur (as Idwig Stephane) |
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René Thierry | ... | Journaliste |
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Gérard Verkies | ... | Facteur |
| Pierre Vernier | ... | Innocence Smit | |
Produced by
| René Thévenet | ... | co-producer |
| André Weis | ... | producer |
| Henri Weis | ... | producer |
Music by
| Armand Seguin | ||
Cinematography by
| Eduard van der Enden | ||
Editing by
| Daniel de Valck | ||
| August Verschueren | ||
Art Direction by
| Catherine Frognier | ||
| Suzanne Frognier | ||
Costume Design by
| Catherine Frognier | ||
| Suzanne Frognier | ||
Production Management
| Michèle Guilleaume | ... | production supervisor |
Second Unit Director or Assistant Director
| Mireille Kies | ... | assistant director |
| Gérard Vercruysse | ... | assistant director |
Sound Department
| Jacques Eippers | ... | sound |
| Henri Morelle | ... | sound |
Camera and Electrical Department
| Gerard Collet | ... | camera operator |
| Walther van den Ende | ... | camera operator |
Animation Department
| Gérald Frydman | ... | animation staff |
| Claude Lambert | ... | animation staff |