The writer Louis Marks has died at the age of 82.
Louis Marks wrote four stories for Doctor Who. In 1965 he wrote the first story of Season Two, Planet of Giants, the first contemporary story in the series since the first episode. He returned to the series in 1972 to plot the return of the Daleks after a gap of several years in Day of the Daleks a story which saw the introduction of the Ogrons.
For the Fourth Doctor he penned two stories, Planet of Evil in 1975 was set on the far distant planet Zeta Minor on the edge of the universe, while The Masque of Mandragora a year later was set in 15th century Italy.
His work away from Doctor Who included The Man Who Finally Died (1967) for the BBC and Special Branch for Thames Television (1970). He wrote for Danger Man with Patrick McGoohan, and for the Doomwatch series. His work as a producer included The Lost Boys (1978), Fearless Frank (1979) and the BBC's adaptation of George Eliot's Middlemarch (1994).
Louis Marks died on 17th September, 2010.