| Person | Type | Job | Role(s) |
|---|---|---|---|
 Charles Mulvehill | Crew | Production | Associate Producer |
 Ivan Passer | Crew | Directing | Director |
 Jeremy Leven | Crew | Writing | Screenplay, Novel |
 Julie Weiss | Crew | Costume & Make-Up | Costume Design |
 Lynn Stalmaster | Crew | Production | Casting |
Richard Chew | Crew | Editing | Editor |
Robbie Greenberg | Crew | Camera | Director of Photography |
Stephen J. Friedman | Crew | Production | Producer |
Sylvester Levay | Crew | Sound | Music |
Josan F. Russo | Crew | Art | Art Direction |
 Al Fann | Cast | Actor | Guard |
 Anthony Peck | Cast | Actor | Norman |
Burton Collins | Cast | Lyman | |
 Byrne Piven | Cast | Actor | Krauss |
Crawford Binion | Cast | Fred | |
 David Ogden Stiers | Cast | Actor | Dr. Sid Kullenbeck |
 Doug Cox | Cast | Actor | Arthur |
 Ellen Geer | Cast | Actress | Mrs. Spencer |
 Elsa Raven | Cast | Actress | Mrs. Mallory |
 Eve McVeagh | Cast | Actress | Woman with Monkey |
 Gary Bayer | Cast | Actor | Bovi |
 Ian Wolfe | Cast | Actor | Prof. Brauer |
 Jeff Corey | Cast | Actor | Dean Harrington |
 John Dehner | Cast | Actor | Paul |
 Jordan Charney | Cast | Actor | Dr. Whitaker |
 Karen Kopins | Cast | Actress | Lucy Wolper |
 Kenneth Tigar | Cast | Actor | Pavlo |
Lee Kessler | Cast | Mrs. Pruitt | |
 Mariel Hemingway | Cast | Actress | Meli |
 Michael Greene | Cast | Actor | Guard |
 Michael McGrady | Cast | Actor | Larry |
 Mike Jolly | Cast | Actor | Boom-Boom |
 Peter O'Toole | Cast | Actor | Dr. Harry Wolper |
 Rance Howard | Cast | Actor | Mr. Spencer |
Sandy Ignon | Cast | Actor | Dr. Franklin |
Vincent Cobb | Cast | Hamberg | |
 Vincent Spano | Cast | Actor | Boris Lafkin |
 Virginia Madsen | Cast | Actress | Barbara Spencer |
 William Bassett | Cast | Actor | Dr. Sutter |
 James Murray | Cast | Actor | Martin Goodwin (uncredited) |
Judith Hansen | Cast | Karen | |
| Person | Type | Job | Role(s) |
