Henry S. KoserActingNo biography available.Known For6.5The Mystery of the Yellow Room19197.0Good-Bye, Bill1918Fan ClubNo Nerds have favorited Henry S. Koser yet — be the first.All fan clubsFrom NerdspinFilmographyActor21919The Mystery of the Yellow RoomFilmMr. Bernier★ 6.51918Good-Bye, BillFilmHerr Tonik★ 7.0
