10 Unmade Doctor Who Stories We Wish We'd Seen
6. The Final Game
Introduced to the series as Moriarty to the Third Doctor's Sherlock Holmes, the Master was intended to be written out towards the end of the Pertwee era. Producer Barry Letts and co-writer Robert Sloman conceived a storyline that would see the former friends do battle one final time. Over the course of this final confrontation, it was to be revealed that the Master was either the Doctor's brother or a personification of his dark side.
The climactic scenes were to see the Master sacrifice himself to save the Doctor, his former friend. Whilst it was never produced, the story has been hugely influential over the years. The idea of the Master's conscience catching up with them would form a key part of Steven Moffat's final series as showrunner. Not only that, but the idea of the Master sacrificing their life to save the Doctor was echoed in the climax to The End of Time Part 2, when he forces the Timelords back to hell.
The story was never produced, due to the tragic and untimely death of actor Roger Delgado. His loss heavily impacted Pertwee, who made the decision to leave the show alongside script editor Terrance Dicks and producer Barry Letts.