Good men don’t need rules. Today is not the day to find out why I have so many.
As good as Matt Smith was as The Doctor – and he could be very, very good – his time on Doctor Who gave Eleven few moments where he could be well and truly dangerous. (The above quote, from “A Good Man Goes To War,” is one of those few.)
That hasn’t been an issue with Twelve. From “Deep Breath” on, Peter Capaldi has taken the character to those dark places only hinted at before. He’s borne the weight of the horrible things The Doctor has seen, the horrible choices he’s had to make.
And he’s nowhere near done.