What villain has freaked you out the most?

[Storm Eagle]

Has there ever been any villain from a TV show, movie, story, or maybe even a video game that has freaked you out more than any other? Would there also be a reason why?

Some time back, I rented a movie called The Wanderers. It takes place in the Bronx circa 1963, and features gangs. There's this one gang in the movie that's the worst out of all of them, known as the Ducky Boys. They live in the worst part of the city, they NEVER speak, they're massive in number, and they fight rather dirty. In fact, they're the only gang in the story that uses weapons.

There's this scene where one guy who betrayed the Wanderers gang ends up in the Ducky Boys' territory. When one of them comes at him with a blade, he tries to run away, but he's always confronted by more groups of Ducky Boys no matter where he runs. He tries to climb a ladder on a building to get away, and not even that provides a good escape for him. Then he ends up losing his grip and falls to his death.

I guess it didn't help that I watched this movie so late in the night. Just imagine being in a really messed up neighborhood and being confronted by a massive group of guys who don't speak a single word, and all they want is to beat the crud out of you. You'd probably also have difficulty taking a gang with a name like "the Ducky Boys" so seriously, but I guess that might have been the whole point. Anyway the movie is based on a book, which states that neither one of them is any taller than 5'3. The name might have something to do with that too.