| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alan Simmonds | Crew | Directing | Assistant Director |
Earle Fiset | Crew | Art | Set Dresser |
Edgar J. Scherick | Crew | Production | Executive Producer |
Henry Denker | Crew | Writing | Writer, Executive Producer |
Jack McAdam | Crew | Art | Art Direction |
 John Trent | Crew | Directing | Director |
Ken Brooke | Crew | Costume & Make-Up | Makeup Artist |
Marc Champion | Crew | Crew | Cinematography |
Marilyn Stonehouse | Crew | Production | Production Manager |
Ralph Brunjes | Crew | Sound | Sound Editor |
Roger Palmer | Crew | Costume & Make-Up | Costume Design |
Ron Wisman | Crew | Editing | Editor, Sound Editor |
Tony Lucibello | Crew | Production | Assistant Production Manager |
Wilf Culley | Crew | Art | Property Master |
John Aldred | Crew | Sound | Sound Recordist |
James Keeler | Crew | Costume & Make-Up | Hairstylist |
Russel Heise | Crew | Sound | Sound Mixer |
Dolores Claman | Crew | Sound | Music |
László Szilvássy | Crew | Camera | Still Photographer |
Ron Gillham | Crew | Camera | Key Grip |
Ruby Renaut | Crew | Directing | Continuity |
Honor Griffith | Crew | Editing | Assistant Editor |
Michael Manne | Crew | Editing | Editor |
Terence Dene | Crew | Production | Producer |
Chris Holmes | Crew | Lighting | Gaffer |
Pamella Barney | Crew | Production | Casting |
Brian Walker | Crew | Directing | Assistant Director |
Françoise Franque | Crew | Editing | Negative Cutter |
Roy Smith | Crew | Sound | Orchestrator |
Mogens Gander | Crew | Crew | Cinematography |
 Burl Ives | Cast | Actor | T.M. Trask |
James Forrest | Cast | Actor | Guard #4 |
 John S. Davies | Cast | Actor | Doctor |
 Nina Keogh | Cast | Actress | Trask's Nurse (uncredited) |
Robert Goodier | Cast | Actor | Dr. Wilfrid Morton |
Robert Mann | Cast | Actor | Guard #3 |
Ron Hartmann | Cast | Actor | Dr. John Emmett |
 Sandy Dennis | Cast | Actress | Dr. Enid Bingham |
 Stuart Whitman | Cast | Actor | Dr. McCarter Purvis |
Tom Harvey | Cast | Actor | McBride |
Joseph Shaw | Cast | Actor | Dr. Franz Heinemann |
 Jack Creley | Cast | Actor | Dr. George Simmons |
Harvey Fisher | Cast | Actor | Copter Pilot |
George Pyfrom | Cast | Surgeon #2 | |
V.K. Saini | Cast | V.K. Saini | |
Clem Hambourg | Cast | Pianist | |
Kenneth James | Cast | Clinton | |
Allen Doremus | Cast | Dr. Carl Bryant | |
Claudia Koropecki | Cast | Surgeon #3 | |
Robert Warner | Cast | Guard #1 | |
| Person | Type | Job | Role(s) |
