Yunjin Kim or Kim Yun-Jin (November 7, 1973) is a South Korean-American film and theater actress.
She is probably best known for her role as Sun on the mystery series Lost. Yunjin Kim also starred as the North Korean spy in the South Korean film Shiri, and Dr. Karen Kim in the ABC drama Mistresses.
Kim was born in Seoul, but at the age of 7 she and her parents immigrated to the United States.
Her latest projects are Ms. Ma, Nemesis South Korean TV series and movie House of the Disappeared.