Kim Jin-geun

as Yong-sik

as Yong-tae

as Dr. P

as [Son Ha Neul's father]

as Yoo Ji-Na's father

as Kim Byung-hoon

as Jang Sung-kyu

as Uncle

as Hwang Dae-yong

as Jung Myung-sik

as Kim Do-il

as Boo-chi