Actor and Director William H. Macy. He's been associated with playwright and film director David Mamet for over 15 years. He appeared in the original productions of Mamet's American Buffalo and The Water Engine. He's appeared in Mamet's films, "House of Games," and "Things Change." Now he's directing the theatrical debut of Mamet's play, "Squirrels," at the Philadelphia festival of New Plays. One of Macy'S earliest acting roles was in the workshop production of "Squirrels" in the 1970's in Chicago.