Bill Denbrough is the main protagonist of Stephen King's horror novel It and its adaptations, the leader of the Losers' Club, and a writer haunted by the murder of his younger brother, Georgie, by the shapeshifting evil entity known as Pennywise the Dancing Clown, whose death fuels Bill's quest for revenge and his battle with survivors' guilt. A stuttering child, Bill unites his outcast friends to fight IT, becoming a symbol of bravery and resilience against trauma.