Barry William Blenkhorn, better known by his stage name Barry Williams, is an American actor. He is known for his role as the eldest of the Brady sons, Greg Brady, on the ABC television series The Brady Bunch (1969–1974), a role he reprised in several sequels and spin-offs including the animated series The Brady Kids (1972), the variety series The Brady Bunch Hour (1976-1977) and the television films The Brady Girls Get Married (1981) and A Very Brady Christmas (1988) and the reality television series A Very Brady Renovation (2019).

A Very Brady Christmas is a 1988 American made-for-television Christmas comedy-drama film directed by Peter Baldwin and starring Robert Reed, Florence Henderson, Ann B. Davis, Barry Williams, Maureen McCormick, Christopher Knight, Eve Plumb, Mike Lookinland, and Jennifer Runyon. It reunited the original cast members of the 1969–1974 sitcom The Brady Bunch, with the exception of Susan Olsen. Ron Kuhlman and Jerry Houser both reprised their characters from the short-lived 1981 sitcom The Brady Brides.