Doctor Who Series 10: 10 Biggest WTF Moments

2. Missy And The Master's Deaths

Even with an extra fifteen minutes added to The Doctor Falls’ running time, we were never going to get enough scenes featuring Michelle Gomez and John Simm. There were all kinds of ways their story might play out – would the Master turn Missy back to the dark side, or would she recruit him to the Doctor’s cause? Would we see a regeneration from Simm to Gomez? Would both or one of the two versions of the Master die? Few will have predicted that they would end up killing each other.

It was a double WTF moment when Missy stabbed the Master in the back and he in turn blasted her with his laser as she walked away. There was a kind of poetry to it, and as the Master himself observed it was the only way they could go. The Doctor sure as hell was never going to kill them.

The Master might have been leaving with his signature laugh, but there was no shortage of pathos in the way in which he was curled up in the lift. Missy’s death was even more tragic. As she walked away smiling, did she know what her predecessor would do? Was this her ultimate get out from giving in to her latent goodness? Unless Moffat has another surprise up his sleeve for the Christmas Special we will probably never know.