The Trygon Factor
A Scotland Yard detective is investigating a string of robberies and a murder, and the information he uncovers leads him to the estate of a wealthy but strange English family, who share their mansion with a group of nuns. The detective comes to suspect that neither the family nor the nuns is quite what they seem to be.
Stewart Granger
Superintendent Cooper Smith
Susan Hampshire
Trudy Emberday
Cathleen Nesbitt
Livia Emberday
James Culliford
Luke Emberday
Brigitte Horney
Oberin
Robert Morley
Hubert Hamlyn
Sophie Hardy
Sophie
Colin Gordon
Dice
Eddi Arent
Clossen
Diane Clare
Clare
Allan Cuthbertson
Det. Thompson
Caroline Blakiston
Nun
Richardina Jackson
Nun
Yuri Borienko
Nailer
Conrad Monk
Pasco
John Barrett
Guide
Jeremy Hawk
Bank Manager
James Robertson Justice
Sir John (voice)
Monika Dietrich
Photographic Model
Joseph Cuby
Inigo Jackson
Russell Waters
Tom Bowman
Carmen Dene
Carol Dilworth
Siegfried Schürenberg
Sir John
Karen Young
Pauline Chamberlain
Maurice Connor
Peter Hannon
Cicely Paget-Bowman
Harry Phipps
Peter Roy
Alan Stuart
John Tatham
Hilary Wontner
Fred Wood