Kim Soo-ro
Jang Ryang

Kwon Sang-woo
Song Hak-rim

Cho Seong-ha
Korean Language Teacher

Seo Beom-sik
Athletics

Jung Sang-hoon
Con Cho

Yun Mun-sik
Principal

Lee Yu-mi
Kyung-soo's sister

Park Dong-bin
Music teacher

Shin Cheol-jin
Chinese teacher

Jung Won-joong
School Nurse