Plot: Bad Guy is a 2010 South Korean melodrama television series, starring Kim Nam-gil, Han Ga-in, Kim Jae-wook, Oh Yeon-soo and Jung So-min. Directed by Lee Hyung-min, it aired on SBS from May 26 to August 5, 2010 on Wednesdays and Thursdays at 21:55 for 17 episodes