- Joan Collins - Jane Blake
- Ian Bannen - Gregory Dean
- Daphne Heard - Deborah Crabbe
- Milo O’Shea - Father Crumlish
- Patrick Magee - Sergeant Morris
- Glyn Owen - Det. Inspector Cumberland
- Rupert Davies - Lemerie
- Susannah York - Countess Josephine
- Dean Stockwell - Jerry
- Alec McCowen - James Addishaw
- André van Gyseghem - Judge
- Donald Pleasence - Cawser
- Victor Buono - Sam Adelbert
- Brewster Mason - Richard Lumsden
- Morag Hood - Rosalie
- Megs Jenkins - Mrs. White
- Anton Rodgers - Edmund Blake
- Jane Seymour - Veronique d' Aubray
- Julie Dawn Cole - Vera May Barton
- Colin Baker - George Barclay
- Christopher Lee - Arnaud
- Edward Albert - The young gambler
- Kevin Stoney - Surgeon Day
- Phil Davis - Johnny Sheeham
- Paul Antrim - Paul
- Michael Elphick - Gorenflot
- Anthony Sharp - J.J. McGill
- Robert James - Mr. Granger
- Shane Rimmer - Police Sergeant Warren
- Cyril Cusack - Mr. White
- Ralph Arliss - Priest
- Peter Cushing - Count Gerard De Merret
- Willoughby Goddard - Sir Thomas
- Michael Kitchen - Herbert White
- Marc Zuber - Don Feredia
- Orson Welles
Peter Cushing interpreta a Count Gerard De Merret en la serie.
Michael Elphick hace el papel de Gorenflot.
Christopher Lee interpreta a Arnaud en la serie.
Julie Dawn Cole hace el papel de Vera May Barton.
Dean Stockwell hace el papel de Jerry.
Ian Bannen interpreta a Gregory Dean en la serie.
Patrick Magee hace el papel de Sergeant Morris.
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