as Dae-woo

as Gong Cheon-soo

as Chang-woo (창우)

as Vice-principal

as Kwon Joon-hyeok

as Choi Dae-kyeong

as Hwang Woo-jin

as Jang Yoon-cheol

as Director Choi Kyu Dong

as Oh Hyeon-soo

as Kim Sang-do

as Kim Seon-woo

as Choi Yong-bin

as Kang Dong-joon

as Seong-wook

as Director Park

as Yoo Joon-hee

as Jeong Hoo-kyeom

as Park PD

as Bae Hee-myeong

as Ha Joon-ho

as Yakuza