Do you know why I posted a picture at the start of this post? I posted a picture because it's of Morgan Freeman and you are now reading everything I wrote in the voice of Morgan Freeman. Listen to that voice and tell me it doesn't hold power. I too will say that Morgan Freeman is the most powerful movie character. Not just because he played God in Bruce Almighty, but also because by simply posting a picture of him you are compelled to hear his voice.
Krug Stillo (played by David Hess) from The Last House on the Left (1972) is the most powerful character I have seen in a movie. Out of all of the villains in films I have seen, none have stuck in my memory like Krug Stillo. David Hess plays his part perfectly and the evil simply oozes from Krug. The whole film centers around the kidnapping and **** of two high school girls and throughout the film we are exposed to the cruel and disturbed mind of Krug. An unforgettable character and an unforgettable film.