| Actor | Gérard Blain, Jean-Claude Brialy, Guy Decomble, Corrado Guarducci, Paul Bisciglia, Jean-Louis Maury, Claude Cerval |
| Actress | Juliette Mayniel, Geneviève Cluny, Michèle Méritz, Stéphane Audran, Jeanne Pérez, Françoise Vatel |
| Assistant | Philippe de Broca |
| Decors | Jacques Saulnier, Bernard Evein |
| Dialogue | Paul Gégauff |
| Director | Claude Chabrol |
| Director Of Photography | Henri Decaë |
| Music | Paul Misraki |
| Producer | Claude Chabrol |
| Screenplay | Claude Chabrol |
| Sound | Jean-Claude Marchetti |
| Links | https://fr.wikipedia.org/wiki/Les_Cousins · https://www.imdb.com/title/tt0052708/?ref_=nv_sr_srsg_0 |
