Trailer
Images
 | Suzanna Leigh as Vicki Robbins |
 | Frank Finlay as H.W. Manfred |
 | Guy Doleman as Ralph Hargrove |
 | Catherine Finn as Mary Hargrove |
 | John Harvey as Thompson |
 | Michael Ripper as David Hawkins |
 | Anthony Bailey as Compere |
| Tim Barrett as Harcourt |
 | James Cossins as Coroner |
 | Frank Forsyth as Doctor |
 | Katy Wild as Doris |
| Greta Farrer as Sister |
| Gina Gianelli as Secretary |
 | Michael Gwynn as Doctor Lang |
| Alistair Williamson as Inspector |
 | Ronnie Wood as Member of the Byrds |
| Maurice Good as Agent |
| Directing | |
| Freddie Francis | Director |
Writing | |
| Robert Bloch | Screenplay |
Art | |
| Eric Saw | Draughtsman |
Camera | |
| Kenneth J. Withers | Focus Puller |
Production | |
| Milton Subotsky | Producer |
| Max Rosenberg | Producer |
Camera | |
| Alan Hall | Camera Operator |
| John Wilcox | Director of Photography |
Production | |
| Ted Wallis | Production Supervisor |
Art | |
| William Constable | Art Direction |
Editing | |
| Oswald Hafenrichter | Editor |
Directing | |
| Anthony Waye | Assistant Director |
| Pamela Davies | Continuity |
Sound | |
| Ken Hawkins | Sound Recordist |
Costume & Make-Up | |
| Evelyn Gibbs | Wardrobe Supervisor |
| Jill Carpenter | Makeup Artist |
| Bobbie Smith | Hairdresser |
Sound | |
| Wilfred Josephs | Original Music Composer |
| Philip Martell | Conductor |
Writing | |
| Anthony Marriott | Screenplay |
| H.F. Heard | Novel |
Crew | |
| Michael Collins | Special Effects |
