About John Nathan-Turner
John Turner, known professionally as John Nathan-Turner, was a British television producer. He was the ninth producer of the long-running BBC science fiction series Doctor Who and the final producer of the series' first run on television. He finished the role having become the longest-serving Doctor Who producer and cast Peter Davison, Colin Baker and Sylvester McCoy as the Fifth, Sixth and Seventh Doctors, respectively. Nathan-Turner's first major story influence was in bringing back the Master, but the details of this he left to Bidmead. He was the ninth producer of the long-running 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).
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.