| HHéléna BossisGuillemette Babin | Guillemette Babin |
 Jean DavyProsecutor Salavert | Prosecutor Salavert |
 Édouard DelmontMaître Pierre Pasquier | Maître Pierre Pasquier |
| JJacky FlyntMathilde | Mathilde |
| GGermaine KerjeanRadegonde, Guillemette's mother | Radegonde, Guillemette's mother |
 Paul DemangeMaître Nicolas | Maître Nicolas |
| RRobert SellerLouis Le Noble | Louis Le Noble |
| CColette FleuriotClothilde | Clothilde |
 Jacques DufilhoMonk | Monk |
 Grégoire GromoffNot listed | Not listed |
| JJean HeuzéPrior of Saint-Geniest | Prior of Saint-Geniest |
| JJacques TorrensFouquembières | Fouquembières |
 Jean CarmetÉtienne | Étienne |
| LLéone NogarèdeNot listed | Not listed |
| JJean SylvainThe idiot | The idiot |
| MMathevetStudent | Student |
 Francette VernillatGuillemette as a child | Guillemette as a child |
 Michel BarbeyJean-François Pasquier | Jean-François Pasquier |
| FFrédéric ReySabbath Devil | Sabbath Devil |
 Renaud MaryCharles Perrin | Charles Perrin |
| CChristine VallendierMarie | Marie |
 Alfred BaillouJailer (uncredited) | Jailer (uncredited) |
| SSimone Bogarde(uncredited) | (uncredited) |
 Palmyre LevasseurDame Pasquier (uncredited) | Dame Pasquier (uncredited) |