Sung Yong-ilDirecting·South KoreaSung Yong-il (성용일) is a South Korean director.Known forIMDb0.0Duty After SchoolTV show · 2023IMDb0.0Class of LiesTV show · 2019IMDb0.0Dr. FrostTV show · 2014IMDb0.0Fighter Choi Kang-soonMovie · 2018Credits4AllMoviesTV showsAll departments▼2023Duty After SchoolTV showDirector · 10 episodes2019Class of LiesTV showDirector · 16 episodes2018Fighter Choi Kang-soonMovieDirector2014Dr. FrostTV showDirector · 10 episodes
