One of the biggest missed opportunities in Doctor Who. Jackson Lake just being a regular guy is the blandest and most predictable answer to the mystery as to who this Doctor is - and the truth gets revealed far far too quickly to have any real sense of payoff and tension. You literally just had a fake out regeneration in the last story, how cool would it have been for David Morrissey to have been the actual Eleventh Doctor, but echoing from a timeline where the Stolen Earth regeneration completed?

Man, Morrissey just deserved to be an actual Doctor. When the message is "anyone can be brave enough to be the Doctor", which is commendable enough, it doesn't quite work when the real Doctor gets all the cool heroic moments later on - saving the boy, confronting the Cyber-King - whilst Jackson only just watches on. A pity.