No photoSung Yong-ilDirecting · South KoreaIMDb BiographySung Yong-il (성용일) is a South Korean director.Directing · 4TV★ 8.1Duty After School2023TV★ 7.7Class of Lies2019MOVIE★ 3.0Fighter Choi Kang-soon2018TV★ 5.7Dr. Frost2014
