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
Doctor Who (series 9) were both prequels to "The Magician's Apprentice". The ninth series is the second starring Peter Capaldi as the Twelfth Doctor, and the third and final starring Jenna Coleman as the Doctor's companion Clara Oswald. In "Doctor Who Magazine", Michelle Gomez confirmed that she would return as Missy, the latest incarnation of the Master, who served as the main villain in series 8. In February 2015, it was confirmed that Missy would return in "The Magician's Apprentice" / "The Witch's Familiar", the opening episodes of the series. In January 2015, it was announced that actor Paul Kaye had a guest role