Siw MattsonActingNo biography available.Known For6.4The Zombie Walks19684.5Language of Love19693.7One Swedish Summer19683.7Swedish and Underage1969Fan ClubNo Nerds have favorited Siw Mattson yet — be the first.All fan clubsFrom NerdspinFilmographyActor41969Language of LoveFilm★ 4.51969Swedish and UnderageFilmMaria Svenningson★ 3.71968The Zombie WalksFilmPeggy Ward★ 6.41968One Swedish SummerFilm★ 3.7