| Person | Type | Job | Role(s) |
|---|---|---|---|
 Claudio Argento | Crew | Production | Producer |
 Claudio Simonetti | Crew | Sound | Original Music Composer |
 Dario Argento | Crew | Directing | Director, Screenplay, Story |
Enrico Lucherini | Crew | Crew | Unit Publicist |
Fabio Pignatelli | Crew | Sound | Original Music Composer |
Ferdinando Caputo | Crew | Production | Production Accountant |
Francesca Roberti | Crew | Directing | Script Supervisor |
Franco Fraticelli | Crew | Editing | Editor |
Giovanni Corridori | Crew | Crew | Special Effects |
Giuseppe Bassan | Crew | Art | Production Design |
Giuseppe Mangogna | Crew | Production | Production Manager |
Giuseppe Tinelli | Crew | Camera | Camera Operator |
 Lamberto Bava | Crew | Directing | First Assistant Director |
 Luciano Tovoli | Crew | Camera | Director of Photography |
Massimo Anzellotti | Crew | Sound | Sound Effects |
Massimo Morante | Crew | Sound | Original Music Composer |
Maurizio Garrone | Crew | Art | Set Decoration |
 Michele Soavi | Crew | Directing | Second Assistant Director |
Piero Bozza | Crew | Editing | Assistant Editor |
Pierantonio Mecacci | Crew | Costume & Make-Up | Makeup Artist |
Salvatore Argento | Crew | Production | Executive Producer |
Pierangelo Cicoletti | Crew | Costume & Make-Up | Costume Designer |
Francesco Bellomo | Crew | Camera | Still Photographer |
Mario Dallimonti | Crew | Sound | Sound |
Luciano Anzellotti | Crew | Sound | Sound Effects |
Romano Pampaloni | Crew | Sound | Sound Mixer |
Roberto Priori | Crew | Editing | Assistant Editor |
Patrizia Corridoni | Crew | Costume & Make-Up | Key Hair Stylist |
Cesare Jacolucci | Crew | Production | Production Manager, Production Supervisor |
Tommaso Barbi | Crew | Art | Set Decoration |
Osvaldo Monaco | Crew | Art | Property Master |
Barbara Canevari | Crew | Costume & Make-Up | Assistant Costume Designer |
Vanda Caprioli | Crew | Costume & Make-Up | Other |
David Block | Crew | Editing | Colorist |
Giancarlo Laurenzi | Crew | Sound | Boom Operator |
Saverio Mangogna | Crew | Production | Production Secretary |
Giuseppe Pagnotta | Crew | Art | Property Master |
Carlo Du Bois | Crew | Production | Production Accountant |
Mario Moreschini | Crew | Camera | Key Grip |
Franco Tomei | Crew | Costume & Make-Up | Costume Designer |
Roberto Marsigli | Crew | Camera | Assistant Camera |
Diego Della Valle | Crew | Costume & Make-Up | Shoe Design |
Maurizio Piano | Crew | Camera | Assistant Camera |
Francesco Giulivi | Crew | Lighting | Gaffer |
Remo Cartocci | Crew | Camera | Grip |
Aldo Taloni | Crew | Art | Set Dresser |
Cesare Piccini | Crew | Art | Assistant Property Master |
Massimo Garrone | Crew | Art | Assistant Set Decoration |
Antonella Caputo | Crew | Art | Assistant Production Design |
 Ania Pieroni | Cast | Actress | Elsa Manni |
 Anthony Franciosa | Cast | Actor | Peter Neal |
 Carola Stagnaro | Cast | Actress | Detective Altieri |
 Christian Borromeo | Cast | Actor | Gianni |
 Daria Nicolodi | Cast | Actress | Anne |
Dario Argento | Cast | Actor | Narrator (Italian version) / Murderer's Hands (voice) (uncredited) |
 Ennio Girolami | Cast | Actor | Department Store Manager (as Enio Girolami) |
 Eva Robin's | Cast | Actress | Girl on Beach |
 Fulvio Mingozzi | Cast | Actor | Alboretto, the porter |
 Giuliano Gemma | Cast | Actor | Detective Germani |
Isabella Amadeo | Cast | Actress | Bullmer's secretary |
 John Saxon | Cast | Actor | Bullmer |
 John Steiner | Cast | Actor | Christiano Berti |
Lamberto Bava | Cast | Actor | Elevator Repairman #1 (uncredited) |
 Lara Wendel | Cast | Actress | Maria Alboretto |
 Marino Masé | Cast | Actor | John |
Michele Soavi | Cast | Actor | Maria's Boyfriend / Man Walking with Girl on Beach (uncredited) |
 Mirella Banti | Cast | Marion | |
 Mirella D'Angelo | Cast | Actress | Tilde |
 Veronica Lario | Cast | Actress | Jane McKerrow |
 Giampaolo Saccarola | Cast | Actor | Coroner (as Gianpaolo Saccarola) |
 Francesca Viscardi | Cast | Actress | |
Monica Maisani | Cast | ||
Ippolita Santarelli | Cast | Actress | Prostitute |
| Person | Type | Job | Role(s) |
