10 Unmade Doctor Who Stories We're Glad We Never Saw
10. The Son Of Doctor Who
At the height of the show's success and the actor's powers, William Hartnell had an idea for a story to be told in Doctor Who's second season. No offence to the man, but it's not the most original of plotlines. It was to involve the Doctor meeting his son, an evil time traveller who looks a lot like him. Hartnell suggested he play both roles, presumably removing the Doctor's wig to appear younger as the evil son.
This is really as far as the idea got, and it's unclear whether a writer was approached or if Hartnell even intended to write the story himself. Nor is it clear if this son would be the father of Susan, or another relative. While it would have been an interesting insight into the Doctor's life, it was wisely abandoned as an idea, maintaining the "Who?" in Doctor Who.
A more nefarious version of the Doctor was introduced in the form of the Meddling Monk, and Hartnell would get his wish to play a villain realised in the 1966 serial The Massacre. An evil Doctor doppelganger was later introduced in The Enemy of the World, where Patrick Troughton played both the Second Doctor and villainous tyrant Ramon Salazar.