John WilliamsonActingNo biography available.Known For6.2Positive I.D.1986Fan ClubNo Nerds have favorited John Williamson yet — be the first.All fan clubsFrom NerdspinFilmographyActor21986Positive I.D.FilmScotty★ 6.21981TenkoTVCaptain Brooks • 1 episodes★ 8.2