Kwak Do-won starred in the highest grossing film of which year? 
Kwak Do-won: Kwak Do-won (born Kwak Byung-kyu on May 17, 1974) is a South Korean actor. The Attorney:  With 11,375,954 tickets sold and a revenue of ₩82.9 billion , "The Attorney" became the 8th best-selling Korean film of all time, and the second highest-grossing Korean film of 2013.
2013