Jesús Franco
Director
Derek Parsons
Editor
John Thompson
Assistant Director
Peter Wellbeck
Original Story
Joyce Oxley
Sound Editor
Bruno Nicolai
Music
Michael Haller
Writer
Harry Alan Towers
Story
Anthony Scott Veitch
Writer
Jesús Franco
Adaptation
Enrico Colombo
Adaptation
Harry Alan Towers
Producer
Arturo Marcos
Producer
Christopher Lee
Lord George Jeffreys
Maria Schell
Mother Rosa
Leo Genn
Lord Wessex
Hans Hass Jr.
Harry Selton
Maria Rohm
Mary Gray
Margaret Lee
Alicia Gray
Pietro Martellanza
Barnaby (as Peter Martell)
Howard Vernon
Jack Ketch
Milo Quesada
Satchel
Werner Abrolat
Inquisitor Matt (uncredited)
Diana Lorys
Sally Gaunt (uncredited)
José Martínez Blanco
Steven Truro (uncredited)
José María Prada
Palafox (uncredited)
Vicente Roca
Chief Prosecutor (uncredited)
