Characters played by Lee Byung-hun
Seo In-woo
Characters played by Eun-ju Lee
In Tae-hee
Characters played by Hyeon-Soo Yeo
Lim Hyeon-bin
Characters played by Soo-Hyun Hong
Yeo Hye-su
Characters played by Mi-seon Jeon
In-woo's wife
Characters played by Suk-Won Chang
Cho Jae-Il
Characters played by Ju-bong Gi
Director of students affairs
Characters played by Hyo-eun Hwang
Sculpture Schoolgirl 2
Characters played by Kim Kap-su
Sculpture professor
Characters played by Beom-su Lee
Lee Dae-Guen
Characters played by Min Namkoong
Kim Chul-Sung
Characters played by Ji-hye Oh
Substitute Teacher of Korean
Characters played by Cheol-min Park
Physical Education Teacher