William Katt is an actor and director, best known for The Greatest American Hero (1981), Carrie (1976) and The Man from Earth (2007). He was born in Los Angeles, California, the son of actress Barbara Hale and actor Bill Williams, grew up in the San Fernando Valley and began acting as a teenager, sometimes appearing with his parents. He has been married to Danielle Hirsch since April 10, 1993. They have two children. He first became known for playing Tommy Ross, the ill-fated prom date of Carrie White in the film version of Carrie and subsequently starred in films such as First Love (1977), Big Wednesday (1978) and Butch and Sundance: The Early Days (1979).
Katt also starred in Baby: Secret of the Lost Legend (1985), about explorers searching for apatosaurs in Africa, and the cult horror/comedy film House (1986); later reprising his role for House IV, in 1992. Between 1985 and 1988, Katt starred in nine Perry Mason television films, playing the role of private detective Paul Drake Jr., co-starring with his mother Barbara Hale, who reprised her role of Della Street from the Perry Mason television series. He continues to appear on television and in film roles, and also has branched out into voice acting, and has also has written a “Greatest American Hero” comic book and contributed to that series' Facebook page.