William Katt was born in Los Angeles, California, USA as William Theodore Katt. He is the son of actress Barbara Hale and actor Bill Williams. He is an actor and director, known for Big Wednesday (1978), The Greatest American Hero (1981), Carrie (1976) and The Man from Earth (2007). He has been married to Danielle Hirsch since April 10, 1993. They have two children. He was previously married to Deborah Kahane.