Park Si-wanActor · Born January 1, 2010IMDb Acted in 52020s2021Squid GameSae-byeok's brother · 3 episodes79Kids Are FineJae-kyeong2020PawnYoung Doo-seok792010s2019Doctor JohnYoung Cha Yo-han · 16 episodes79FebruarySung-hoon