Kevin Chamberlin (born November 25, 1963) is an American actor and singer. He is best known for playing Bertram on the Disney sitcom Jessie, as well as his theatre roles such as Horton in Seussical and Uncle Fester in The Addams Family. Chamberlin studied acting at Rutgers University's Mason Gross School of the Arts in New Brunswick, New Jersey, and graduated with a B.F.A. in acting in 1985. Chamberlin is openly gay. He has been married to TV writer and producer Michael Gans since 2008, having been together since 1991.