3. The Silence
They disappear from sight when you turn away and you completely forget them. Genius. They controlled most of the world and wanted the Doctor dead. Hyped up with the phrase Silence Will Fall this enemy did not disappoint when they finally reared theirsorry what were we saying? Oh yeah, the silence! Pushing our civilisation across the course of human history, the Silence. They sort of look like the painting The Scream and have a knack of killing people/aliens/things that try to get in their way by displacing them. They fire a blast which turns their victims into an energy which they then absorb through a mouth-esque depression in the face. They literally suck up the life vapors. Its pretty freaky and very grim. These guys stuck on throughout the sixth series and were the background threat behind everything which kept us guessing when and where theyd show up next. The fact that they basically succeeded in killing the Doctor more or less and that since then the Doctor has been in hiding from them indicates the extent of their power. Dont be surprised if these guys show up again. Best Quote: You tend to my wounds. You are foolish. Appearances: The Impossible Astronaut onwards