On screen
Cast
30 credited performers
Minhyun
Yoon Ga-min
Lee Jong-hyun
Kim Se-hyeon
Gong Do-yu
Lee Jun
Shin Su-hyun
Lee Ji-woo
Cha Woo-min
Phi Han-wool
Hong Min-gi
Park Geon-yeop
Han Ji-eun
Lee Han-kyung
Yun Sang-jeong
Choi Hee-won
Park Yoon-ho
Lee Hyun-woo
Baek Seo-hoo
Ma Min-hwan
Lee Gwang-hee
Jeong Do-hoon
Kim Young-ah
Jeon Mi Hyun
Jeong Jae-seong
vice-principal (Yu-seong Tech)
Joo Yeon-woo
Kim Soon-cheol
Cho Seung-yeon
dean of academic affairs (Yu-seong Tech)
Jin Woo-jin
Kim Gyu-Jin [Disciplinary Committee member]
Choi Ye-chan
Character not listed
Kim Min-ah
Hwang Mi-Hee (Yu-seong Tech)
Artwork unavailable
Lee Dong-Hoon
Seo Yoo-bi
Kim Hwi-gyu
No. 173
Ma Hyun-ji
Hong Jae-hui
Lee Chang-In
Nam Sang-woo
Mo Geon-hu
Kook Gwan-u
Jeon So-young
Jang Min-hee
Kwon Sang-woo
Jeon Young-ha
Kim Su-gyeom
Choi Moo-kyu
Yoon Hyun-suk
Ji Young-hyun
Shin Seo-woo
Kim Se Hyeon
Lee Woong-jae
Yoo Joon-min
Lee Keun-wook
Kang Dong-su