Bill Skarsgård. Actor: Es. Bill Istvan Gunther Skarsgard is a Swedish actor, producer, director, writer, voice actor, and model. He is best known for portraying Pennywise the Dancing Clown in the supernatural horror films It (2017) and It Chapter Two (2019), based on Stephen King's novel of the same name. He also voiced the Deviant Kro in the Marvel Cinematic Universe film Eternals (2021).