| Person | Type | Job | Role(s) |
|---|---|---|---|
 Benoît Debie | Crew | Camera | Director of Photography |
 Claudio Argento | Crew | Production | Executive Producer |
 Claudio Simonetti | Crew | Sound | Original Music Composer |
 Dario Argento | Crew | Writing | Screenplay, Director, Producer, Story |
Roy Bava | Crew | Production | Casting, First Assistant Director |
Florence Emir | Crew | Costume & Make-Up | Costume Design |
 Franco Ferrini | Crew | Writing | Screenplay, Story |
Patrizia Chericoni | Crew | Costume & Make-Up | Costume Design |
 Walter Fasano | Crew | Editing | Editor |
 Massimo Antonello Geleng | Crew | Art | Production Design, Art Direction |
Marina Pinzuti Ansolini | Crew | Art | Production Design |
Phoebe Scholfield | Crew | Writing | Dialogue |
Francesco Perri | Crew | Directing | Second Assistant Director |
Marco Santoro | Crew | Directing | Third Assistant Director |
Jay Benedict | Crew | Writing | Dialogue |
 Adalberto Maria Merli | Cast | Actor | Police Commissioner |
 Antonio Cantafora | Cast | Actor | Vice Squad Chief Marini |
Claudio Mazzenga | Cast | Mario | |
 Claudio Santamaria | Cast | Actor | Carlo Sturni |
 Conchita Puglisi | Cast | Actress | Marta |
 Cosimo Fusco | Cast | Actor | Berardelli |
 Elisabetta Rocchetti | Cast | Actress | Second Victim |
 Emanuel Bevilacqua | Cast | Actor | Slot Machine Arcade Owner |
 Fiore Argento | Cast | Actress | Lucia Marini |
 Francesco Guzzo | Cast | Actor | Anti-Hacker #3 |
 Giovanni Visentin | Cast | Actor | C.I.D. Chief |
 Gualtiero Scola | Cast | Crime Scene Investigator | |
 Isabella Celani | Cast | Doctor | |
 Liam Cunningham | Cast | Actor | John Brennan |
 Luis Molteni | Cast | Actor | Pathologist |
 Mario Opinato | Cast | Actor | Inspector Morgani |
 Mia Benedetta | Cast | Actress | Francesca |
 Micaela Pignatelli | Cast | Actress | Professor Terzi |
 Pier Maria Cecchini | Cast | Actor | Flying Squad Chief |
 Robert Dawson | Cast | Actor | Embassy Employee |
 Silvio Muccino | Cast | Actor | Remo |
 Stefania Rocca | Cast | Actress | Anna Mari |
Ulisse Minervini | Cast | Actor | Alvaro |
 Vera Gemma | Cast | Actress | Third Victim |
 Alessandro Mistichelli | Cast | Anti-Hacker #2 | |
 Carlo Giuseppe Gabardini | Cast | Anti-Hacker #1 | |
 Jennifer Poli | Cast | Christine Girdler, First Victim | |
 Lynn Swanson | Cast | C.I.D. wife (uncredited) | |
Michele Pellegrini | Cast | Actor | Young man |
 Robert Madison | Cast | Actor | Gustavo |
Franco Vitale | Cast | Actor | Police Photographer (uncredited) |
Irene Quagliarella | Cast | Friend of the second victim | |
Adriana Fonzi Cruciani | Cast | Bunny | |
Carla Fonzi Cruciani | Cast | Bunny's Sister | |
Elena Falgheri | Cast | Actress | Teacher |
Fiore Cosimo | Cast | Police Operator (uncredited) | |
| Person | Type | Job | Role(s) |
