Happy Halloween!
The Reverend Henry Kane (Nathan Davis) from Poltergeist freaked me out to the max. I don't think there has ever been an actor that scared me so terribly. I would have to say the Exorcist would run a close second in the scare department. Here is a site with Poltergeist III makeup and sketches..before makeup he looks like a friendly man ... - IMDB says Nathan Davis, but others say Julian Beck...

oh no! the Rev has his own Reverand Kane myspace page..