"Traitor" is the first episode of the second season of the British BBC anthology TV series Play for Today.
"Traitor" was written by Dennis Potter, directed by Alan Bridges, produced by Graeme MacDonald, and starred John Le Mesurier as Adrian Harris, a character loosely based on Kim Philby.
[1] Western journalists visit Moscow to interview Adrian Harris, a former controller in British intelligence who was also a double agent for the Soviet Union.
[2] Better known for comedic roles, Le Mesurier's casting was a brave move, one which initially concerned the actor who "was very, very scared" that "he wouldn’t be able to pull it off".
[1] While reviews of the play were mixed, critics were unanimous in their praise for Le Mesurier and he won the British Academy Television Award for Best Actor in 1972.