Yunjin Kim (born November 7, 1973) is an American actress. She is best known for her role as North Korean spy Bang-Hee in the South Korean film Shiri (1999), Sun-Hwa Kwon on the American television series Lost (2004–2010), as well as series such as Mistresses (2013–2016), Money Heist: Korea – Joint Economic Area (2022), XO, Kitty (2023–present).