| Person | Type | Job | Role(s) |
|---|---|---|---|
 Amedeo Giomini | Crew | Editing | Editor |
Armando Novelli | Crew | Production | Producer, Production Manager |
 Claudio Morabito | Crew | Camera | Camera Operator |
 Fernando Di Leo | Crew | Writing | Screenplay, Director, Story |
 Franco Lo Cascio | Crew | Directing | Assistant Director |
Franco Villa | Crew | Camera | Director of Photography |
Nicola Tamburo | Crew | Art | Set Decoration |
Nino Latino | Crew | Writing | Screenplay, Story |
 Silvano Spadaccino | Crew | Sound | Original Music Composer |
Tiziano Longo | Crew | Production | Producer |
Romano Pampaloni | Crew | Sound | Sound Recordist |
Francesco Vitulano | Crew | Production | Unit Manager |
Antonio Mura | Crew | Costume & Make-Up | Makeup Artist |
Antonio Minutolo | Crew | Camera | Assistant Camera |
Teresa Ferrone | Crew | Art | Set Decoration |
Alberto Longo | Crew | Production | Production Supervisor |
Raffaele Benedetti | Crew | Sound | Sound Recordist |
Antonio de Castel Largo | Crew | Camera | Assistant Camera |
Marcella Moretti | Crew | Costume & Make-Up | Wardrobe Designer |
Giacomo Simonelli | Crew | Sound | Conductor |
 Carla Mancini | Cast | Actress | Nurse |
Daniela Di Bitonto | Cast | Actress | Patient |
Enzo Spitaleri | Cast | Actor | Ruth's Husband |
 Ettore Geri | Cast | Actor | Inspector |
 Fernando Cerulli | Cast | Actor | Chaffeur |
Franco Marletta | Cast | Actor | Male Nurse |
Giangiacomo Elia | Cast | The Gardener (as John Ely) | |
 Gilberto Galimberti | Cast | Actor | Policeman |
 Gioia Desideri | Cast | Actress | Ruth |
 Giulio Baraghini | Cast | Actor | Policeman |
Jane Garret | Cast | Actress | Mara |
 John Karlsen | Cast | Actor | Professor Osterman |
 Klaus Kinski | Cast | Actor | Dr. Francis Clay |
 Lina Franchi | Cast | Actress | Nurse Killed with Scythe (uncredited) |
Marco Mariani | Cast | Male Nurse | |
 Margaret Lee | Cast | Actress | Cheryl Hume |
 Monica Strebel | Cast | Actress | Nurse Helen |
 Rosalba Neri | Cast | Actress | Anne Palmieri |
Sandro Rossi | Cast | Policeman | |
Antonio Radaelli | Cast | Policeman | |
Piero Nistri | Cast | Actor | Cheryl's Husband |
Rosanna Braida | Cast | Patient | |
| Person | Type | Job | Role(s) |
