Credits
Cast
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)
Directing
John Thompson
Assistant Director
Jesús Franco
Director, Adaptation
Editing
Derek Parsons
Editor
Production
Arturo Marcos
Producer
Sound
Bruno Nicolai
Music
Joyce Oxley
Sound Editor
Writing
Enrico Colombo
Adaptation
Peter Wellbeck
Original Story
Harry Alan Towers
Story, Producer
Michael Haller
Writer
Anthony Scott Veitch
Writer