Director
Alan Gibson
DIRECTOR
Writer
Ian Curteis
WRITER
Stars (in credits order)
Andrew Ray
Klaus Fuchs
Michael Craig
Bruno Pontecorvo
Ray Smith
Doctor Cockcroft
Peter Jeffrey
Major Phillips
John Franklyn-Robbins
Skardon
Edward Wilson
Alan Nunn May
Antony Carrick
Commander Burt
Sandra Payne
Marianne Pontecorvo
Victoria Fairbrother
Betty
Patrick Barr
MacKenzie King
Tony Sibbald
Aide
John Bryans
Fuchs' Contact
Ernst Walder
Russian Ambassador
Olaf Pooley
Lord Halifax
Ellis Dale
Clement Attlee
Geoffrey Keen
Mr. Justice Oliver
Michael Barrington
Gerald Gardiner KC
Boris Isarov
Igor Gouzenko
Zhivila Roche
Anna Gouzenko
Laurence Herder
Sub-Editor
Anthony Bekenn
Canadian Policeman
Robert Sansom
Lord Chief Justice Goddard
James Greene
British High Commission
Desmond Jordan
Senior Scientist
Charles Rae
British Policeman
