Heart to Heart (2015)

 Cha Hong-do (6 episodes, 2015)

 Ko Yi-Seok (6 episodes, 2015)

 Detective Yang (6 episodes, 2015)

 Hwang Moon-Sun (6 episodes, 2015)

 Ko Se-Ro (6 episodes, 2015)

 Ko Jae-Woong (6 episodes, 2015)

 Woo Yeon-Woo (6 episodes, 2015)

 Jang Doo-Soo (6 episodes, 2015)

 Psychiatrist Uhm Gi-Choon (6 episodes, 2015)

 Detective Yang (6 episodes, 2015)