Traitor. Broadcast 14 October 1971. Directed by Alan Bridges. Written by Dennis Potter. Duration: 61 minutes.
Cast: John Le Mesurier (Adrian Harris), Jack Hedley (James), Vincent Ball (Simpson), Neil McCallum (Blake), Jon Laurimore (Thomas), Lyndon Brook (Sir Arthur Harris).
Notable for an outstanding performance in the lead from John Le Mesurier, this story of an academic who turns spy was one of the less controversial plays from the pen of Dennis Potter, who sets it in one place and just lets the character unravel before our eyes.