Koo Ji-sungActingJanuary 7, 1983 (43 years old)Popularity: 0IMDbAlso Known As구지성 • Koo Ji-sung • JiSeong Gu • Ji-sung KooKnown For7.0Touch by TouchSeon-mi4.2The PuppetHyeon-Jin4.7Girls Girls GirlsHa-eunFilmographyMovies3TV Shows0AllCast3CrewBrowse All2010s7.0Touch by TouchSeon-mi4.7Girls Girls GirlsHa-eun4.2The PuppetHyeon-Jin
