Cast
Austin Trevor
Mr. Petitval
John Dearth
Simon the Jailer
Louis Jourdan
Duke Philippe de Beauvais
Richard O'Sullivan
Louis XVII / Richard de Beauvais
Martita Hunt
Lady Lydia Fell
Frederick Leister
Capt. Andrew Ogden
Laurence Payne
Lautrec
Jacques Brunius
De Chassagne
Belinda Lee
Virginia Traill
Keith Michell
Colonel St. Gerard
Finlay Currie
Mr. Patient
Anne Heywood
Glynis
Brian Rawlinson
Dylan Evans
Terence Longdon
Sir Frederick Venner