William Theodore Katt (born February 16, 1951) is an American film and television actor, primarily known as the star of the television series The Greatest American Hero. His other work includes the 1976 version of Carrie, First Love and Butch and Sundance: The Early Days.
Peter wears Katt's super suit from The Greatest American Hero in "The Man with Two Brians" as he tries to fly in a stunt.
Katt's picture hangs in a bakery in "Are You There God? It's Me, Peter".