AccueilPersonnalités Biographie et filmographieSung Yong-il Sung Yong-il (성용일) is a South Korean director. Films (1)Séries (3) Films (1) Fighter Choi Kang-soon2018 · Director Séries (3) Duty After School2023 · Director Class of Lies2019 · Director Dr. Frost2014 · Director