Park Hae-joon

as Doctor at School Infirmary

as Mr. Yoon

as Park Tae-soo

as Jong-woo

as Beom-soo

as Park Seon-chang

as Kim Ho-tae

as Roh Tae-geon

as Kwon Tae-ju

as Hwang Chi-seong

as Park Seon-chang

as Loan Shark

as Tae-seong

as Myeong-guk

as Min-ho

as Park Hyun-ik

as Ahn Gi-chul

as Joon-soo

as Dong Sung-sik

as Kyung-rok's Father