Park Hae-joon

as Kyung-rok's Father

as Hwang Chi-seong

as Oh Sang-jae

as Roh Tae-geon

as Park Seon-chang

as Doctor at School Infirmary

as Park Tae-soo

as Mr. Yoon

as Ahn Gi-chul

as Kim Ho-tae

as Tae-seong

as Myeong-guk

as Yeong-su

as Jong-woo

as Kwon Tae-ju

as Park Seon-chang

as Sae-hoon

as Dong Sung-sik

as Tarobe

as Park Hyun-ik

as Gwang-soo

as Min-ho

as Joon-soo

as Hwang Jin-man • 12 eps

as Jang Junik • 9 eps

as Lee Jae-geon • 6 eps

as Ryu Jung-seok • 12 eps

as Yang Gwan-sik (middle-aged) • 16 eps

as Self • 2 eps

as Tae-seok / 6F • 8 eps

1 eps

as Nam Geum-pil • 12 eps

as Self • 2 eps

as Lee Tae-o • 16 eps

as Mubaek • 18 eps

as Self • 1 eps

as Self • 1 eps

as Monk Gyeom-duk • 16 eps

as Self • 1 eps

as Self • 1 eps

as Song Jung-Ho • 16 eps

as Park Hyeong-sik • 16 eps

as Chun Kwan-woong • 20 eps

as Cha Jin-soo • 20 eps

as Dae-geun • 24 eps

16 eps