Ahn Jae-hong
Kang Yang-hyun
Lee Sin-young
Cheon Gi-beom
정진운
Bae Gyu-hyuk
김택
Hong Sun-gyu
정건주
Jung Kang-ho
김민
Heo Jae-yoon
안지호
Jung Jin-wook
Lee Jun-hyeok
Teacher Lee
Kim Hoe-jin
Messy hair
Kim Su-jin
Gyu-hyuk's Mother
Kang Ae-sim
Principal's Wife
민무제
Gi-beom's Father
최정윤
Gi-beom's Mother
Bae Seong-il
Teacher 1
