| Person | Type | Job | Role(s) |
|---|---|---|---|
 Andrew Laszlo | Crew | Camera | Director of Photography |
 Andrew Pfeffer | Crew | Production | Executive Producer |
 Bill Conti | Crew | Sound | Original Music Composer |
Carl Fullerton | Crew | Costume & Make-Up | Special Effects Makeup Artist |
Deborah Brown | Crew | Production | Casting |
Elizabeth Gazzara | Crew | Production | Production Assistant |
Garth Craven | Crew | Editing | Editor |
Jack Wright | Crew | Art | Set Decoration |
Jay Cannistraci | Crew | Costume & Make-Up | Makeup Artist |
 Larry Cohen | Crew | Writing | Screenplay |
Marty Hornstein | Crew | Production | Associate Producer |
Michael Leone | Crew | Production | Executive Producer |
 Mickey Spillane | Crew | Writing | Novel |
Richard T. Heffron | Crew | Directing | Director |
Robert Gundlach | Crew | Art | Production Design |
Robert H. Solo | Crew | Production | Producer |
William A. Farley | Crew | Costume & Make-Up | Hairstylist |
Celia Bryant | Crew | Costume & Make-Up | Costume Design |
Aaron Barsky | Cast | Actor | Guard at Gate |
 Alan Dellay | Cast | Actor | Cameraman |
 Alan King | Cast | Actor | Charles Kalecki |
 Armand Assante | Cast | Actor | Mike Hammer |
 Barbara Carrera | Cast | Actress | Dr. Charlotte Bennett |
Barry Snider | Cast | Actor | Romero |
 Bobbie Burns | Cast | Actress | Sheila Kyle |
 Bobby Astyr | Cast | Actor | Orgy Participant (uncredited) |
 Candida Royalle | Cast | Actress | Orgy Participant (uncredited) |
 Corinne Bohrer | Cast | Actress | Soap Opera Actress |
 Daniel Faraldo | Cast | Actor | Danny |
Don Pike | Cast | Actor | Evans |
 Ernest Harada | Cast | Actor | Chef |
 F.J. O'Neil | Cast | Actor | Goodwin |
 Frederic Downs | Cast | Actor | Jack Williams |
 Geoffrey Lewis | Cast | Actor | Joe Butler |
 H. Richard Greene | Cast | Actor | Gentleman at Bar |
 Jack Davidson | Cast | Actor | Eric Clavel |
Jessica James | Cast | Actress | Hilda Kendricks |
 Joe Farago | Cast | Actor | Assistant Director |
 Judson Scott | Cast | Actor | Charles Kendricks |
 Larry Pine | Cast | Actor | Movie Director |
 Laurene Landon | Cast | Actress | Velda |
Lynette Harris | Cast | Actress | 2nd Twin |
 Marlene Willoughby | Cast | Actress | Orgy Participant (uncredited) |
Mary Margaret Amato | Cast | Actress | Myrna Williams |
Mike Miller | Cast | Actor | Victor Kyle |
 Paul Sorvino | Cast | Actor | Detective Pat Chambers |
Robert Sevra | Cast | Breslin | |
 Roger Caine | Cast | Actor | Orgy Participant (uncredited) |
 Samantha Fox | Cast | Actress | Orgy Participant (uncredited) |
 William G. Schilling | Cast | Actor | Lundee |
Leigh Harris | Cast | Actress | 1st Twin |
 Julia Barr | Cast | Actress | Norma Childs |
 Alex Stevens | Cast | Actor | 1st Cab Driver |
M. Sharon Madigan | Cast | Actress | Bonnie |
Norman Blankenship | Cast | Actor | Kelsey |
Herb Peterson | Cast | Policeman | |
Richard Russell Ramos | Cast | Actor | 2nd Cab Driver |
Lee H. Doyle | Cast | Maitre D' | |
David Lauren | Cast | EMT (uncredited) | |
Michael Cullum | Cast | Orgy Participant (uncredited) | |
Michael Fiorello | Cast | Man in Revolving Door | |
Felicity Adler | Cast | Jogger | |
Jodi Douglas | Cast | Party Girl | |
Cheryl Henry | Cast | Brunette | |
Gwyn Gilliss | Cast | Receptionist | |
Loring Pickering | Cast | Soap Opera Actor | |
Timothy Meyers | Cast | Blake | |
Richard Dahlia | Cast | Doctor at Clinic | |
| Person | Type | Job | Role(s) |
