Shall we just round up how clever this guy was as a vilan? He managed to fool the Doctor into believing he was retired, old and past it ‘Professor Yana’, kidnap the TARDIS and manifest himself into 21st century Britain and become elected as ‘Harold Saxon – prime minister of Great Britain’. Not to mention the physic network he set up in order to ‘brainwash’ this to happen, but also enforce an alien invasion on planet earth. OH and, have ultimate control over the doctor. Now you don’t see that happen very often….