 He then starred in leading roles in "Single Again" and "Tears of Diamond".Comic supporting roles followed in "Couple or Trouble" (2006) where he played a selfish yet hapless husband to an heiress, and "Family's Honor" (2008) where he played a playboy twin brother who has an unlikely romance with a tomboyish policewoman.Then Kim surprised audiences by portraying a darker character, an adulterous husband in "What's for Dinner?"