Susan Denberg is dubbed.
Double-billed with "The Mummy's Shroud."
In an interview in the TV Times, Keith Barron says that he turned down a horror film, and from his description of the role and the film, it sounds like the Derek Fowlds part in this film.
Last film of Philip Ray.
We are never told in which Country the film is set, however the Coat of Arms on the coach is that of the Canton of Berne in Switzerland.