| Cast list | | Patrick Dewaere | as | Paul Kerjean | | Michel Auclair | as | Michel Saint-Claude | | Caroline Cellier | as | Hélène Kerjean | | Charles Denner | as | Walter, le détective | | Anny Duperey | as | Laura Weber | | Jeanne Moreau | as | Mme Benoît-Lambert | | Mel Ferrer | as | Cornelius A. Woeagen | | Fernand Ledoux | as | Guérande | | Jean Mercure | as | Holstein | | Jean-Pierre Kalfon | as | L'informateur | | Jean-Laurent Cochet | as | Hartmann | | André Falcon | as | Pierre Bayen, le rédacteur en chef | | Claude Marcault | as | La secrétaire de Kerjean | | Jacques Maury | as | Jack Sleiter | | Jacqueline Doyen | as | Arlène Robert |
| | Crew list: | | Henri Verneuil (Director) | | Henri Verneuil (Writer) |
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