Mary Davis DuncanActingNo biography available.Known For5.5The Initiation19844.5Jaws 3-D1983Fan ClubNo Nerds have favorited Mary Davis Duncan yet — be the first.All fan clubsFrom NerdspinFilmographyActor31984The InitiationFilmGwen★ 5.51983Jaws 3-DFilmReporter At Party★ 4.51982Highway HoneysFilmCarol Lee Shepherd