question: Which actor starred in a 2000 Korean film written and directed by Kim Ki-duk?
answer: Kim Yu-seok
context: Title: Kim Yu-seok
  Passage: Kim Yu-seok (born September 22, 1966) is a South Korean actor.  He starred in the films "The Power of Kangwon Province" (1998), "The Isle" (2000), "Possible Changes" (2005), "Long and Winding Road" (2006), and "Family Matters" (2006), as well as the television series "Reservation for Love" (2002), "Thank You, My Life" (2006), "My Lovely Fool" (2006), "White Lies" (2008) and "The King's Dream" (2012).
  Title: The Isle
  Passage: The Isle is a 2000 South Korean film written and directed by Kim Ki-duk, his fifth film, and the first to receive wide international acclaim for his now recognizable style.  The film has gained notoriety for gruesome scenes that caused some viewers to vomit or faint when the film premiered at the Venice Film Festival.
  Title: Pietà (film)
  Passage: Pietà () is a 2012 South Korean film.  The 18th feature written and directed by Kim Ki-duk, it depicts the mysterious relationship between a brutal man who works for loan sharks and a middle-aged woman who claims that she is his mother, mixing Christian symbolism and highly sexual content.
citations: Kim Yu-seok The Isle