Characters played by Anthony Bate
Kim Philby
Characters played by Derek Jacobi
Guy Burgess
Characters played by Michael Culver
Donald Maclean
Characters played by Bernard Archard
Graves
Characters played by Barrie Cookson
Helenus Milmo
Characters played by Oliver Ford Davies
Patterson
Characters played by Ingrid Hafner
Aileen Philby
Characters played by Richard Hampton
Major Sansom
Characters played by Patrick Holt
Peterson
Characters played by Robin Hooper
Reed
Characters played by Richard Hurndall
Sir Stewart Menzies
Characters played by Anthony Langdon
Volkov
Characters played by Arthur Lowe
Herbert Morrison
Characters played by David Markham
Skardon
Characters played by Hugh Morton
Marcus Lipton
Characters played by Elizabeth Seal
Melinda Maclean
Characters played by Tony Sibbald
Reporter
Characters played by Philip Stone
Farquesson
Characters played by Peter Vaughan
Philby's Control