The Doctors
How well do you know The Doctors? Whether you've watched every series of Doctor Who or are a new fan just learning the ropes, take a look at our guide to all the Doctors so far to celebrate the 50th anniversary of Doctor Who. (All images ©BBC)

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The First Doctor: William Hartnell
Full Name: William Henry Hartnell
Born: 8 January 1908 - St. Pancras, London Died: 23 April 1975 - Marden, Kent
Played The Doctor From: 1963-1966
Series: 1, 2, 3, (4)
Aliases: Doctor Caligari, Theta Sigma
Companions: Susan Foreman, Ian Chesterton, Barbara Wright, Vicki, Steven Taylor, Katarina, Sara Kingdom, Dodo Chaplet, Polly, Ben Jackson
Quote: "You cannot rewrite history! Not one line!" (The Aztecs)
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The Second Doctor: Patrick Troughton
Full Name: Patrick George Troughton
Born: 25 March 1920 - Mill Hill, London Died: 28 March 1987 - Georgia, USA
Played The Doctor From: 1966-1969
Series: 4, 5, 6
Aliases: John Smith; Doctor von Wer
Companions: Polly, Ben Jackson, Jamie McCrimmon, Victoria Waterfield, Zoe Heriot, The Brigadier, Sergeant Benton
Quote: "Our lives are different from anybody else's. That's the exciting thing. Nobody in the universe can do what we're doing.? (The Tomb of the Cybermen)
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The Third Doctor: Jon Pertwee
Full Name: John Devon Roland Pertwee
Born: 7 July 1919 - Chelsea, London Died: 20 May 1996 - Connecticut, USA
Played The Doctor From: 1970-1974
Series: 7, 8, 9, 10, 11
Aliases: John Smith
Companions: The Brigadier, Jo Grant, Liz Shaw, Sergeant Benton, Captain Yates, Sarah Jane Smith
Quote: "Courage isn't a matter of not being frightened, it's being afraid and doing what you have to do anyway." (Planet of the Daleks)
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The Fourth Doctor: Tom Baker
Full Name: Thomas Stewart Baker
Born: 20 January 1934 - Liverpool, England
Played The Doctor From: 1974 - 1981
Series: 12, 13, 14, 15, 16, 17, 18
Aliases: Signed his name as question mark
Companions: The Brigadier, Sergeant Benton, Sarah Jane Smith, Harry Sullivan, Leela, K-9, Romana I, Romana II, Adric, Nyssa, Tegan
Quote: "Answers are easy. It's asking the right questions which is hard." (The Face of Evil)
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The Fifth Doctor: Peter Davison
Full Name: Peter M. G. Moffett
Born: 13 April 1951 - Streatham, London
Played The Doctor From: 1981-1984
Series: 19, 20, 21, 20th Anniversary Special
Aliases: Doctor Walters
Companions: The Brigadier, Adric, Nyssa, Tegan, Turlough, Kamelion, Peri Brown
Quote: "Dreams are important...never underestimate them." (Snakedance)
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The Sixth Doctor: Colin Baker
Born: 8 June 1943 - Waterloo, London
Played The Doctor From: 1984-1986
Series: (21), 22, 23
Aliases: Claudius Dark, The Sandman
Companions: Peri Brown, Mel Bush
Quote: ?This is a situation that requires tact and finesse. Fortunately, I am blessed with both.? ('Terror of the Vervoids')
"Planets come and go. Stars perish. Matter disperses, coalesces, forms into other patterns, other worlds. Nothing can be eternal." (The Mysterious Planet)
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The Seventh Doctor: Sylvester McCoy
Full Name: Percy James Patrick Kent-Smith
Born: 20 August 1943 - Dunoon, Scotland
Played The Doctor From: 1987-1989 , 1996
Series: 24, 25, 26
Aliases: Mr. Ashcroft, Richard A Fells
Companions: The Brigadier, Mel Bush, Ace
Quote: "You can always judge a man by the quality of his enemies." (Remembrance of the Daleks)
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The Eighth Doctor: Paul McGann
Born: 14 November 1959 - Liverpool, England
Played The Doctor From: 1996
Series: The TV Movie
Aliases: Doctor Bowman, Sir Doctor Peter Pollard
Companions: Grace Holloway
Quote: "The universe hangs by such a delicate thread of coincidences, it's useless to meddle with it. Unless, like me, you're a Time Lord." (Doctor Who TV Movie)
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The Ninth Doctor: Christopher Eccleston
Born: 16 February 1964 - Salford, England
Played The Doctor From: 2005
Series: 1
Aliases: Mr. Spock, Hal Gryden
Companions: Rose Tyler, Mickey Smith, Captain Jack
Quote: "Your wish is my command... But be careful what you wish for." (Father's Day)
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The Tenth Doctor: David Tennant
Full Name: David John McDonald
Born: 18 April 1971 - West Lothian, Scotland
Played The Doctor From: 2005-2010
Series: 2, 3, 4 (2008-2010 Specials)
Aliases: Dr. James McCrimmon, Doctor McCoy, Doctor Noble
Companions: Sarah Jane Smith, K-9, Rose Tyler, Mickey Smith, Captain Jack, Martha Jones, Donna Noble, Wilfred Mott, River Song
Quote: ?Some people live more in 20 years than others do in 80. It's not the time that matters, it's the person.? (The Lazarus Experiment)
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The Eleventh Doctor: Matt Smith
Full Name: Matthew Robert Smith
Born: 28 October 1982 - Northampton, England
Played The Doctor From: 2010-2013
Series: 5. 6. 7 (2013 Specials)
Aliases: The Caretaker, Commander Bond of Naval Intelligence
Companions: Amy Pond, Rory Williams, River Song, Clara Oswald
Quote: "The way I see it, every life is a pile of good things and...bad things. The good things don't always soften the bad things, but vice versa, the bad things don't necessarily spoil the good things or make them unimportant." (Vincent and the Doctor)