John Nathan-Turner

John Turner known professionally as John NathanTurner was an English television producer He was the ninth producer of the longrunning BBC science fiction series Doctor Who and the final producer of the series first run on television from 1980 until it was cancelled in 1989 He finished the role having become the longestserving Doctor Who producer and cast Peter Davison Colin Baker and Sylvester McCoy as the Fifth Sixth and Seventh Doctors respectively