William Glenn Shadix (* 15. April 1952 in Bessemer, Alabama; † 7. September 2010 in Birmingham, Alabama) war ein US-amerikanischer Filmschauspieler. ()
William Glenn Shadix was an American actor. He was known for his role as Otho in Tim Burton's horror comedy film Beetlejuice and as the voice of the Mayor of Halloween Town in The Nightmare Before Christmas.