Trailer
 | Ludivine Sagnier as Vicomtesse de Warnens |
 | Louise Bourgoin as Marquise de Brinvilliers |
 | Thibault de Montalembert as Gobelin |
 | Joseph Olivennes as Sainte-Croix |
 | Igor van Dessel as Lancieux |
 | Finnegan Oldfield as La Chaussée |
 | Jean-Baptiste Puech as Saint-Gilles |
 | Vincent Londez as Penautier |
| Directing | |
| Marc Dugain | Director |
Writing | |
| Marc Dugain | Screenplay |
| Caryl Férey | Co-Writer |
Production | |
| Patrick André | Producer |
Camera | |
| Frida Marzouk | Director of Photography |
Directing | |
| David Janssens | First Assistant Director |
Production | |
| Mathilde Snodgrass | Casting Director |
Costume & Make-Up | |
| Fabio Perrone | Costume Design |
Art | |
| Séverine Baehrel | Production Design |
Production | |
| Jean-Pierre Garrabos | Production Manager |
Directing | |
| Lara El Nemer | Script Supervisor |
Sound | |
| Pascal James | Sound Mixer |
Production | |
| Antonin Morel | Location Manager |
