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Open Image ModalBritish actress Carole Ann Ford (centre, right) makes a horn sign at a Dalek from the BBC television science fiction series 'Doctor Who', at the Daily Mail Schoolboys' and Girls' Exhibition at Olympia, London, 28th December 1964. In the series, Ford plays Susan Foreman, the companion of the first Doctor, played by William Hartnell. (Photo credit: Victor Drees/Evening Standard/Hulton Archive/Getty Images) (credit:Getty)
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Open Image ModalDr Who encounters the ancient Aztecs in an episode of the famous TV series in 1964. From left to right, the actors are John Ringham, William Russell, Jacqueline Hill, William Hartnell (1908 - 1975) and Keith Pyott. (Photo credit: Moore/Fox Photos/Getty Images) (credit:Getty)
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Open Image ModalBritish actors Tom Baker and Elisabeth Sladen pose in 1974, who star in the new BBCTV series 'Dr Who'. (Photo by Victor Blackman/Express/Getty Images) (credit:Getty)
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Open Image ModalTom Baker as the new Dr Who in 1974. He is shown here with a Cyberman and his assistant Sarah Jane Smith, played by Elisabeth Sladen, at the BBC television centre. (Photo credit: Frank Barratt/Keystone/Getty Images) (credit:Getty)
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Open Image ModalDr Who (actor Peter Davison) and female companions of the Doctor's past and present pose in 1983. (l-r) Louise Jameson, Carole Ann Ford, Caroline John, Sarah Sutton, Elisabeth Sladen and Janet Fielding. (Photo credit: PA) (credit:PA)
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Open Image ModalPaul McGann (as The Doctor) and Daphne Ashbrook (as Dr. Grace Holloway) in Doctor Who, shown in 1996. (Photo credit: WENN.com) (credit:WENN)
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Open Image ModalActress Catherine Tate arrives at the press launch of 'Dr Who' series 4 at the Apollo West End in 2008 in London. (Photo credit: Dave Hogan/Getty Images) (credit:Getty)
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Open Image ModalDoctor Who, played by Sylvester Mccoy, poses with his companion Melanie, played by Bonnie Langford, in 1987. (Photo credit: Photoshot/Getty Images) (credit:Getty)
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Open Image ModalDoctor Who, played by Colin Baker, with companion Peri, played By Nicola Bryant in 1986. (Photo credit: Photoshot/Getty Images) (credit:Getty)
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Open Image Modal20th November 1980: Tom Baker, who plays Dr Who in the childrens TV series, is to marry Lalla Ward, who plays his assistant Romana in the series. (Photo by Keystone/Getty Images) (credit:Getty)
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Open Image Modal1980: Actress Lalla Ward, Dr Who's assistant in the BBC television series, riding K9, the doctor's robotic 'dog', in a park (Photo by Hulton Archive/Getty Images) (credit:Getty)
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Open Image ModalActor Jon Pertwee, a former Dr Who, and actress Elisabeth Sladen, who played his companion in the series, at Heathrow Airport where they departed to Miami to attend a Dr Who convention (PA) (credit:PA)
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Open Image ModalTom Baker, as Doctor Who, and Mary Tamm as his companion, Romana, on the set of the BBC television science fiction series 'Doctor Who', at BBC TV Centre, London, 25th April 1978. (Photo by Fred Mott/Evening Standard/Hulton Archive/Getty Images) (credit:Getty)
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Open Image ModalEnglish actors Jon Pertwee (1919 - 1996) and Elisabeth Sladen (1946 - 2011) outside BBC TV Centre, London, 26th June 1973. Pertwee and Sladen play Doctor Who and his companion Sarah Jane Smith in the British television series 'Doctor Who'. (Photo by William H. Alden/Evening Standard/Hulton Archive/Getty Images) (credit:Getty)
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Open Image ModalPeter Purves
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Open Image ModalDR Who: Billie Piper, Christopher Eccleston (credit:WENN)
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Open Image ModalBernard Cribbins (and David Tennant collect the award for best Drama received for Dr Who during the National Television Awards 2010.
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Open Image ModalDr Who (credit:BBC )
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Open Image ModalThe eleventh Doctor Who, actor Matt Smith, and his companion Amy Pond, actress Karen Gillian, arrive at the screening of an episode of the new Doctor Who series at Cineworld, Cardiff (Ben Birchall/PA Wire) (credit:PA)
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Open Image ModalJames Corden and Matt Smith take a break from filming the BBC sci-fi series Doctor Who Penarth, Wales. Photo: WENN.com
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Open Image ModalK-9