I first heard of him for Dracula but I have yet to see it. He was compared to Conrad Veidt.
I did see MARK OF THE DEVIL. Blade-he was well-cast in that.
"Learn from me, if not by my precepts, at least by my example, how dangerous is the acquirement of knowledge and how much happier that man is who believes his native town to be the world, than he who aspires to become greater than his nature will allow." Frankenstein