Margaret JoBeth Williams (born December 6, 1948) is an Academy Award, Golden Globe, and Emmy nominated American film and television actress and director, and current President of the Screen Actors Guild Foundation. Williams rose to prominence appearing in such films as Stir Crazy (1980), Poltergeist (1982), The Big Chill (1983), The Day After (1983), Teachers (1984), and Poltergeist II: The Othe...