 BourvilAlbert Gaudet, investigating judge | Albert Gaudet, investigating judge |
 Marina VladyCatherine Dupré | Catherine Dupré |
 Virna LisiGina Bianchi, nurse | Gina Bianchi, nurse |
 Pierre BrasseurCharles Cassidi, lawyer for Mrs. Dupré | Charles Cassidi, lawyer for Mrs. Dupré |
 Umberto OrsiniMaître Philliet, lawyer for Gina Bianchi | Maître Philliet, lawyer for Gina Bianchi |
 Mony DalmèsMrs. Marjorie, brothel keeper | Mrs. Marjorie, brothel keeper |
 Jacques MonodProsecutor Magnin | Prosecutor Magnin |
 Jacques MauclairGeorges Boisset, Mrs. Dupré's neighbor | Georges Boisset, Mrs. Dupré's neighbor |
| JJean-Loup PhilippeGina Bianchi's ex-boyfriend | Gina Bianchi's ex-boyfriend |
 Robert VidalinPresident of the assize court | President of the assize court |
 Gilbert GilGarat, journalist in the pay of Me Cassidi | Garat, journalist in the pay of Me Cassidi |
 Daniel LecourtoisLawyer | Lawyer |
| MMohamed JamoussyNot listed | Not listed |
 Hubert NoëlCatherine Dupré's lover | Catherine Dupré's lover |
 Hubert DeschampsDr. Mermet | Dr. Mermet |
| RRaymond DevimeNot listed | Not listed |
 Marcel CuvelierMe Cassidi's secretary | Me Cassidi's secretary |
 Roger RudelDoctor | Doctor |
 Léa GrayNot listed | Not listed |
| JJean-Henri ChamboisDean of the Court | Dean of the Court |
 José Luis de VilallongaPaul Dupré, the late husband | Paul Dupré, the late husband |
 Frédéric PottecherLegal columnist | Legal columnist |
 François DarbonMorin | Morin |
| GGuy PerrotNot listed | Not listed |
| RRobert BerriReenactment man (uncredited) | Reenactment man (uncredited) |
 Henri CoutetSecurity guard (uncredited) | Security guard (uncredited) |
| PPierre Devilder(uncredited) | (uncredited) |
 Guy HenryInspector (uncredited) | Inspector (uncredited) |
 Bernard MussonRobert, Dupré's servant (uncredited) | Robert, Dupré's servant (uncredited) |
| LLouis SaintèveLawyer (uncredited) | Lawyer (uncredited) |
