Characters played by Sun-kyun Lee
Sewon
Sewon Koh
Characters played by June Yoon
Dr. Myung
Characters played by Yoo-Young Lee
Jaeyi Jung
Characters played by Hee-soon Park
Kangmu Lee
Characters played by Seo Ji-hye
Lieutenant Choi
Characters played by Jae-won Lee
Namil Hong
Characters played by Mina An
Yoojin
Characters played by Moon Sung-Keun
Dr. Myung
Characters played by Teo Yoo
Secretary Yoon