Children have a sweetness and innocence that can be terrifying when it's masking a well of pure evil. These five kids in horror movies haunted our waking nightmares for years. But off-screen, the actors who played them have grown up to be seemingly normal adults who are not a threat to our well-being ... as far as we can tell. That being said, if I ever run into one in the real world, I'm proceeding with caution.

1) The Grady twins from The Shining