When John Hurt (that's now Sir John Hurt to you, owing to the fact that he's recently been knighted in the Queen's New Year honours list - congrats!) was revealed as a 'forgotten' version of the Doctor at the end of the climactic Series 7: Part 2 finale, The Name of the Doctor, fans always knew that it was strictly going to be a 'one time' sort of thing. Suffice to say, the veteran of the stage and screen stole the show - as he was always going to - during the 50th anniversary festivities which, obviously, left viewers chomping at the bit for even more. John Hurt's tenure as the titular Time Lord was basically a fully fledged era condensed into a feature-length episode. Fans got to see Paul McGann (more on him later) transform into him - which was an historic moment in itself - at the end of the surprise prequel The Night of the Doctor and, after a date with destiny and the fateful moment in The Day of the Doctor, this war-torn incarnation returned to his TARDIS where he promptly regenerated into Christopher Eccleston. It was short but so very, very sweet. The War Doctor action continued in the tie-in novel Engines of War but for many fans that simply won't do. They've been campaigning for him to make a return and have even decided that his Time War escapades warrant a fully fledged spin off series of their very own. Suffice to say, the return of the War Doctor is one that every Doctor Who fan is waiting for.