The Human Factor

Every man in love is a potential traitor.

A low-ranking Secret Service agent is conned into supplying information to Eastern Bloc countries. Although he is not a suspect due to his unimportant position, when his office partner is hauled in as a suspect he realises he has got himself into very deep water.

Thriller

Nicol Williamson

(Maurice Castle)

Richard Attenborough

(Colonel John Daintry)

Derek Jacobi

(Arthur Davis)

John Gielgud

(Brigadier Tomlinson)

Iman

(Sarah)

Joop Doderer

(Cornelius Muller)

Robert Morley

(Doctor Percival)

Ann Todd

(Castle's Mother)

Anthony Woodruff

(Dr Barker)

Keith Marsh

(Porter)

Gary Forbes

(Sam)

Angela Thorne

(Lady Mary Hargreaves)

Tony Haygarth

(Buffy)

Cyd Hayman

(Cynthia)

Paul Seed

(Shop Assistant)

Ken Jones

(Messenger)

Fiona Fullerton

(Elizabeth)

Tony Vogel

(Matthew Connolly)

Martin Benson

(Boris)

Adrienne Corri

(Sylvia)

Edward Dentith

(Edward)

Marianne Stone

(Matron)

Giles Watling

(Colin)

Frank Williams

(Bellamy)

Tom Chatto

(Gen. Phillips)

Sean Caffrey

(Policeman)

Clifford Earl

(Ferguson)

Sylvia Coleridge

(Mrs Halliday)

Denys Hawthorne

(Insp. Butler)

Glenna Forster-Jones

(Black Prostitute)

Morris Perry

(Scientist)

Richard Vernon

(Sir John Hargreaves)

Walter Hinds

(Van Donck)

Philip Chege

(Black Man)

Norbert Okare

(Questioner)

Vicky Udall

(Castle's Secretary)

Brian Epson

(Judge)

Leon Greene

(Tall Man)

Robert Dorning

(Jameson)

Patrick O'Connell

(Reader)

Raewyn Blade

(Secretary)

Boris Isarov

(Agent)

Paul Curran

(Halliday)

Chantal Gray

(Stripper)

Jill Goldston

(NATO Lab Worker (uncredited))