Actor
Younger brother of Christopher Guest. Half-brother of journalist Anthony Haden-Guest.
Brother-in-law of actress/director Jamie Lee Curtis.
His mother was American, his father was an English lord: Peter Haden-Guest, the fourth baron of Saling in Essex, an actor and dancer who ended up a UN diplomat. His half-brother is Anthony Haden-Guest , the bibulous English socialite and journalist satirized by Tom Wolfe in The Bonfire of the Vanities .
Father of Elizabeth Guest , Julia Haden Guest and stepfather of Willie Rack.
Uncle of Annie Guest and Thomas Guest.