I am about to blow your mind, John Hurt is the 8.5 Doctor if you Should say, who killed the Timelords, so thats why in the episode he said ‘What I did was without choice’ So thats who John Hurt is in DW, now on to the Time War the Doctor Could maybe live forever if he killed the Timelords he must of stolen there regeneration energy to live on. MIND BLOWN!!!!!!!!!!!!!!!!!!!!