 Giovanni Lombardo RadiceProfessor Vassago | Professor Vassago |
 Antonio ZequilaSenator Vinci | Senator Vinci |
 Simone DestreroKarl the Butcher | Karl the Butcher |
| EErika KameseLiliana | Liliana |
| SSteve AquilinaHans Ebert | Hans Ebert |
| VVincenzo PezzopaneAristide D'Amato | Aristide D'Amato |
| MMichela ForestaBea Vinci | Bea Vinci |
| LLeonardo PaceLanza (The Lawyer) | Lanza (The Lawyer) |
| DDaniela CicconeDeborah | Deborah |
| CChoco LateKaren (The Soubrette) | Karen (The Soubrette) |
| FFederica CarpicoThe Spanish Steps Girl | The Spanish Steps Girl |
 Nikol BrownRazor Victim | Razor Victim |
| CChiara PavoniThe Prostitute | The Prostitute |
| FFabrizia ScopinaroAntiquarian's Lover | Antiquarian's Lover |
| AAntonio TentoriThe Client | The Client |
 Barbara MagnolfiFinal Victim | Final Victim |
| MMarco CerilliThe Gimp | The Gimp |
 Luigi CozziDr. Cozzi (Forensic Inspector) | Dr. Cozzi (Forensic Inspector) |
 Enzo G. CastellariDr. Castellari (Chief Inspector) | Dr. Castellari (Chief Inspector) |
 Andreas SchnaasPaul Glas (Hamburg Informant) | Paul Glas (Hamburg Informant) |
 Fabrizio CapucciAntiquarian | Antiquarian |
 Lilli CaratiThe Occultist | The Occultist |
| MMatteo PastoreYoung Karl | Young Karl |
| SStefania ViscontiKarl's Mother | Karl's Mother |
| RRoberto D'OnofrioReporter | Reporter |
| RRiccardo RocchiForensic Photographer | Forensic Photographer |
| RRoberto CiardielloForensic Agent 1 | Forensic Agent 1 |
| RRoberto RomagnoliForensic Agent 2 | Forensic Agent 2 |
| MMauro PiccilloForensic Agent 3 | Forensic Agent 3 |
| SStefano D'AmbrosioDriver | Driver |
