HomePeople Biography and filmographyJang Young-cheol Biography unavailable on TMDB. Movies (0)TV shows (9) Movies (0) No credits available. TV shows (9) Big Mouth2022 · Creator Vagabond2019 · Writer Monster2016 · Writer Empress Ki2013 · Writer Incarnation of Money2013 · Writer History of the Salaryman2012 · Writer Giant2010 · Writer The King Dae Joyoung2006 · Writer, Creator 2004 Human Market2004 · Writer