 | Jack Hedley als Lt. Fred Williams |
 | Almanta Suska als Fay Majors |
 | Howard Ross als Mickey Scellenda |
 | Andrea Occhipinti als Peter Bunch |
 | Alexandra Delli Colli als Jane Forrester Lodge |
 | Paolo Malco als Dr. Paul Davis |
 | Cinzia de Ponti als Rosie |
 | Cosimo Cinieri als Dr. Lodge |
 | Daniela Doria als Kitty |
 | Babette New als Mrs. Weissburger |
 | Zora Kerova als Eva |
 | Antone Pagán als Morales |
 | Josh Cruze als Chico |
 | Rita Silva als Scellenda's Landlady |
 | Giordano Falzoni als Dr. Barry Jones |
 | Lucio Fulci als Chief of Police |
 | Barbara Cupisti als Heather |
| Martin Sorrentino als Police Detective |
 | Michele Soavi als Newspaper Buyer (uncredited) |
 | Sal Carollo als Dog Walker (uncredited) |
 | Urs Althaus als Sex Show Performer #2 (uncredited) |
| Paul E. Guskin als Desk Sergeant |
| Marsha MacBride als Policewoman |
| Violetta Jean als Hospital Nurse |
 | Cesare Di Vito als Telephone Tracing Technician |
| Elisa Cervi als Hooker |
| Chiara Ferrari als Susy Bunch |
| Rick Reid als Pool Hall Hustler (uncredited) |
| Jorge Umberto Quevedo als Pool Hall Player (uncredited) |
| Ralph Nieves als Detective Pagán (uncredited) |
| Tony Carrion als Policeman (uncredited) |
| Rene Clemente als Pool Hall Player (uncredited) |
| Nat Bush als Police Detective (uncredited) |
| James Sampson als Sex Show Audience Member (uncredited) |
| Lucio Fulci | Screenplay |
| Dardano Sacchetti | Screenplay |
| Vincenzo Mannino | Screenplay |
| Massimo Lentini | Costume Design |
| Fabrizio De Angelis | Producer |
| Massimo Lentini | Production Design |
| Franco Di Girolamo | Makeup Artist |
| Lucio Fulci | Director |
| Luigi Kuveiller | Director of Photography |
| Vincenzo Tomassi | Editor |
| Gianfranco Clerici | Screenplay |
| Francesco De Masi | Original Music Composer |
| Vincenzo Mannino | Story |
| Lucio Fulci | Story |
| Gianfranco Clerici | Story |
| Jose De Lemos | Co-Producer |
| Antone Pagán | Producer |
| Rosa Luciani | Hairstylist |
| Germano Natali | Special Effects Makeup Artist |
| Rosario Prestopino | Assistant Makeup Artist |
| Luigi Rocchetti | Makeup Artist |
| Manlio Rocchetti | Makeup Artist |
| Maurizio Trani | Makeup Artist |
| Fabrizio De Martino | Unit Manager |
| Paolo Gargano | Unit Manager |
| Marisa Agostini | Assistant Director |
| Roberto Giandalia | Assistant Director |
| Delfin Chavez | Graphic Designer |
| Rodolfo Ruzza | Property Master |
| Eros Giustini | Sound Engineer |
| Bruno Moreal | Sound Mixer |
| Guglielmo Smeraldi | Boom Operator |
| Nazzareno Cardinali | Stunt Coordinator |
| Antonio Annunziata | Assistant Camera |
| Antonio Benetti | Still Photographer |
| Umberto Dessena | Grip |
| Sergio Emidi | Key Grip |
| Guglielmo Mancori | Second Unit Director of Photography |
| Aldo Marchiori | Assistant Camera |
| Roberto Nicosia | Still Photographer |
| Renato Palmieri | Assistant Camera |
| Sabatino Sperandeo | Electrician |
| Marco Sperduti | Assistant Camera |
| Ubaldo Terzano | Camera Operator |
| Massimo Cataldo | Assistant Editor |
| Armando Pace | Assistant Editor |
| Rick Dallago | Location Manager |
| Rita Agostini | Continuity |
| Paolo Bernardini | Production Driver |
| Jose De Lemos | Production Accountant |
| Emilia Morale | Production Assistant |
| Ralph Nieves | Technical Advisor |
| Settimio Scacco | Production Assistant |
