William Katt

William Theodore Katt (born February 16, 1951) is an American actor and musician. He is best known for his starring role as Ralph Hinkley/Hanley on the ABC television series The Greatest American Hero (1981–1983).

Katt first became known for playing Tommy Ross, the prom date of Carrie White in the original film version of Carrie (1976). He subsequently starred in films such as First Love (1977), Big Wednesday (1978) and Butch and Sundance: The Early Days (1979). Between 1985 and 1988, he starred in nine Perry Mason television films alongside his mother Barbara Hale, who reprised her role as Della Street from the television series Perry Mason.