George Markstein - Cast

George Markstein (29 August 1926 – 15 January 1987) was a British journalist and writer of thrillers and teleplays. He was the script editor of the British series The Prisoner for the first thirteen episodes, and appeared briefly in its title sequence. Markstein also wrote for or story-edited other television series, specialising in espionage stories, and jointly ran a successful literary agency for screenwriters.