Have you seen Twisty the Clown on this season's American Horror Story? If you saw him, you'd remember him. He's got a set of choppers that you just can't forget.
Actor Conrad Veidt is famous to millions of classic film fans as the Nazi villain, Major Strasser in 1942's Casablanca. Veidt starred in a number of silent films that were quite influential. In one of them, he played a young noble whose face was surgically disfigured by order of a despotic king. Years later and because of his disfigurement, he joins a traveling circus troupe and becomes a top act. In 1928, Conrad Veidt starred as Victor Hugo's The Man Who Laughs. Veidt's make-up made his screen character memorable. There was an elegant horror to his disfigured face. His face gave circus audiences a start when it popped through the curtain. The noble is now a circus freak.
By the way, if you want to see a compelling performance, watch and study Conrad Veidt as The Man Who Laughs. It's a silent film. Today's young actors can learn a lot from Veidt's physicality in the lead role. He poetically evokes all the feelings of this mistreated, grotesque, human man. It is truly a film classic anchored by a great lead performance.