Jon Pertwee and Katy Manning, December 1972.
© Science Museum / Science & Society Picture Library
Doctor Who cast members Jon Pertwee (centre) with Katy Manning and John Levene at the opening of the BBC TV Visual Effects exhibition at the Science Museum, London. Jon Pertwee was Doctor Who from 1970 to 1974; Katy Manning took the role of the Doctor's assistant Jo Grant from 1971 to 1973. John Levene played the popular UNIT soldier Sergeant Benton. The original series of the popular science fiction series 'Doctor Who' ran from 1963 to 1989. Jon Pertwee was the first Doctor to be filmed in colour.