Fan Casting Pennywise the dancing clown in Stephen King's IT

The character is an ancient cosmic evil which preys upon the children of Derry, Maine, roughly every 27 years, using a variety of powers that include the ability to shapeshift, manipulate reality, and go unnoticed by adults. During the course of the story, It primarily appears in the form of Pennywise the Dancing Clown. "The Losers Club" first realizes Pennywise's presence because of Bill's little brother Georgie.