 | Pierre Brasseur als Doctor Génessier |
 | Alida Valli als Louise |
 | Édith Scob als Christiane Génessier |
 | Juliette Mayniel als Edna Gruber |
 | Alexandre Rignault als Inspector Parot |
 | Béatrice Altariba als Paulette Mérodon |
 | Charles Blavette als Man from the Pond |
 | Michel Etcheverry als Dr. Lherminier |
 | Claude Brasseur als Inspector |
 | Yvette Etiévant als Mother |
 | René Génin als Emile Tessot |
 | Lucien Hubert als Man at the Cemetery |
 | Marcel Pérès als Man at the Cemetery |
 | François Guérin als Jacques Vernon |
| Brigitte Juslin als Juliette (uncredited) |
| Maurice Jarre | Original Music Composer |
| Jean Redon | Adaptation |
| Georges Franju | Director |
| Thomas Narcejac | Adaptation |
| Margot Capelier | Art Direction |
| Gilbert Natot | Editor |
| Jules Borkon | Producer |
| Jean Redon | Novel |
| Eugen Schüfftan | Director of Photography |
| Pierre Boileau | Adaptation |
| Auguste Capelier | Production Design |
| Claude Sautet | Adaptation |
| Pierre Gascar | Dialogue |
| Denise Natot | Assistant Editor |
| Jean Redon | Screenplay |
| Thomas Narcejac | Screenplay |
| Albert Volper | Set Dresser |
| Riccardo Gualino | Producer |
| Ginette Diamant-Berger | Script Supervisor |
| Hubert de Givenchy | Costume Design |
| Georges Klein | Makeup Artist |
| Margot Capelier | Unit Production Manager |
| Charles-Henri Assola | Special Effects |
| Pierre Boileau | Screenplay |
| Pierre Gascar | Writer |
| Jacques Mély | Assistant Art Director |
| Antoine Archimbaud | Sound Engineer |
| Marie Martine | Costume Design |
| Pierre Laurent | Production Manager |
| Claude Sautet | Assistant Director |
| Claude Sautet | Screenplay |
| Marcelle Testard | Hairstylist |
| Claude Moesching | Assistant Art Director |
