Pennywise
It, commonly known as Pennywise the Dancing Clown, is the titular main antagonist of Stephen King's 1986 horror novel It, and its adaptations. The character is an ancient, trans-dimensional malevolent entity who preys upon the children (and sometimes adults) of the fictional town of Derry, Maine, roughly every 27 years, using a variety of supernatural powers that include the abilities to shapeshift and manipulate reality.