| Person | Type | Job | Role(s) |
|---|---|---|---|
 Christopher Wicking | Crew | Writing | Dialogue |
 Edgar Allan Poe | Crew | Writing | Short Story |
George Provis | Crew | Art | Art Direction |
 Gordon Hessler | Crew | Directing | Director, Producer |
Harry Robertson | Crew | Sound | Original Music Composer |
Jimmy Evans | Crew | Costume & Make-Up | Makeup Artist |
John Coquillon | Crew | Camera | Director of Photography |
Lawrence Huntington | Crew | Writing | Screenplay |
Louis M. Heyward | Crew | Production | Executive Producer |
Max Benedict | Crew | Editing | Editor |
Pat Green | Crew | Production | Associate Producer |
Bobbie Smith | Crew | Costume & Make-Up | Hairdresser |
 Alister Williamson | Cast | Actor | Sir Edward Markham |
 Andreas Malandrinos | Cast | Actor | Baron (uncredited) |
Anne Clune | Cast | Actress | Prostitute (uncredited) |
Anthony Bailey | Cast | Actor | Talbot (uncredited) |
Arthur Howell | Cast | Actor | Fighting Man in Tavern (uncredited) |
 Barbara Kellerman | Cast | Actress | Dr. Neuhartt's Patient (uncredited) |
 Carl Rigg | Cast | Actor | Norton |
 Christopher Lee | Cast | Actor | Dr. J. Neuhartt |
 Colin Jeavons | Cast | Actor | Doctor (uncredited) |
 Danny Daniels | Cast | Actor | Witchdoctor |
 Eddie Powell | Cast | Actor | Fighting Man in Tavern (uncredited) |
 Godfrey James | Cast | Actor | Weller |
 Harry Baird | Cast | Actor | N'Galo |
 Hedger Wallace | Cast | Actor | Major (uncredited) |
 Hilary Dwyer | Cast | Actress | Lady Elizabeth Markham |
Hira Talfrey | Cast | Actress | Martha |
 Ivor Dean | Cast | Actor | Hawthorne |
Jan Rossini | Cast | Actress | Prostitute (uncredited) |
John Wentworth | Cast | Actor | Parson |
Martin Terry | Cast | Sailor (uncredited) | |
 Martin Wyldeck | Cast | Actor | Constable (uncredited) |
Maxwell Shaw | Cast | Actor | Hackett |
 Michael Balfour | Cast | Actor | Ruddock |
 Nick Tate | Cast | Actor | Young Man in Tavern (uncredited) |
 Peter Arne | Cast | Actor | Samuel Trench |
Richard Cornish | Cast | Actor | Groom (uncredited) |
 Rupert Davies | Cast | Actor | Joshua Kemp |
 Sally Geeson | Cast | Actress | Sally Baxter |
Tony Thawnton | Cast | Actor | Man in Tavern (uncredited) |
 Uta Levka | Cast | Actress | Heidi |
 Vincent Price | Cast | Actor | Sir Julian Markham |
Zeph Gladstone | Cast | Actress | Trench's Girl (uncredited) |
James Mellor | Cast | Actor | Holt |
 John Barrie | Cast | Actor | Franklin |
 Victor Harrington | Cast | Actor | Sir Julian (uncredited) |
Betty Woolfe | Cast | Actress | Mrs. Hopkins |
Sean Barry-Weske | Cast | Molester in Tavern (uncredited) | |
Bill Cummings | Cast | Actor | Fighting Man in Tavern (uncredited) |
Reg Thomason | Cast | Actor | Drunk (uncredited) |
Harold Coyne | Cast | Actor | Barman (uncredited) |
Tara Fernando | Cast | Gypsy Dancer (uncredited) | |
Ann Barrass | Cast | Actress | Prostitute (uncredited) |
Ina Clare | Cast | Tavern Reveller (uncredited) | |
Jackie Noble | Cast | Prostitute (uncredited) | |
| Person | Type | Job | Role(s) |
