HomePeople Biography and filmographyGary Duncan Biography unavailable on TMDB. Movies (4)TV shows (0) Movies (4) The Happy Lands2012 · Walter McInnes Wild ThingWild Thing2012 · Self Monterey Pop - The Outtake Performances2002 · Quicksilver Messenger Service Fillmore1972 · Self - Performers(as Quicksilver Messenger Service) TV shows (0) No credits available.