Doctor Who has had viewers cowering behind the couch in fear since 1963. However, one episode from 2007 stands above all others in its ability to terrify. "Blink" is a Season 3 episode that barely features the Doctor and companion Martha Jones at all, and lives in infamy as Doctor Who's scariest ever episode. It was the episode that introduced the Weeping Angels, those sinister living statues that can move in the blink of an eye.
Source：https://www.cbr.com/doctor-who-blink-no-weeping-angels/
