Third Doctor See List of non-televised Third Doctor stories. Third Doctor The Third Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series "Doctor Who". He was portrayed by actor Jon Pertwee. Within the series' narrative, the Doctor is a centuries-old Time Lord alien from the planet Gallifrey who travels in time and space in his TARDIS, frequently with companions. At the end of life, the Doctor can regenerate his body; as a result, his physical appearance and personality change. Pertwee portrays the third such incarnation, a dapper man of action of stark contrast to his
The Ark (Doctor Who) 1998. It was later released on CD with linking narration by Peter Purves. The CD also includes an interview with Peter about this story and his time on "Doctor Who". This CD is available as an Audio Book on the iTunes Store. "The Ark" was released on DVD on 14 February 2011 in region 2, and on 8 March 2011 in Region 1. The Ark (Doctor Who) The Ark is the fifth serial of the third season of the British science fiction television series "Doctor Who", which was first broadcast in four weekly parts from 5 to 26 March 1966.