Seth Kevin Chamberlin (born November 25, 1963) is an American actor and singer. He is known for his theatre roles such as Horton in Seussical and Uncle Fester in The Addams Family. For his theatre work, he was nominated for three Tony Awards and three Drama Desk Awards. He also starred as Bertram Winkle in the Disney Channel Original Series sitcom Jessie from 2011 to 2015. From 2018 to 2019, he starred as The Wizard of Oz in Wicked on Broadway. (Via Wikipedia)