Yunjin Kim (born November 7, 1973), also known as Kim Yun-Jin is a South Korean-American film and theater actress. She is best known for her role as Sun on the American television series Lost, and as the North Korean spy Bang-Hee in the South Korean film Shiri. She also starred as Dr. Karen Kim in the ABC drama series Mistresses.
Kim was born in Seoul, South Korea on November 7, 1973. She immigrated to the United States with her family in 1980. They lived in Staten Island, New York. She joined the middle school drama club in the 7th grade and performed in the musical My Fair Lady.
Kim attended high school at the prestigious Fiorello H. LaGuardia High School of Music & Art and Performing Arts, a public high school located in Manhattan. From there, she went on to study drama at the London Academy of Performing Arts and later earned her BFA degree in drama at Boston University. Kim has remarked that in her zeal to become Americanized quickly, she studied acting, academics and pronunciat