Ha Jung-hoonActing • 2003-07-14 • South KoreaNo biography available.Known For7.7Boy, with Caution2026Fan ClubNo Nerds have favorited Ha Jung-hoon yet — be the first.All fan clubsFrom NerdspinFilmographyActor12026Boy, with CautionTVLee Hyun-jae • 8 episodes★ 7.7