Lim Ju-kyung
Lee Su-ho
Han Seo-jun
Kang Soo-jin
Lim Hee-kyung
Lim Jae-pil
Hong Hyun-suk
Han Joon-woo
Lim Ju-young
Choi Soo-a
Kim Cho-rong
Young Im Hee-kyung
[Math teacher]
Jin Hee Jung [Seobom High freshman student
[Saebom High student bully]
[Bus driver]
[Move Entertainment employee]
Min Jae Joon [Plastic surgeon]
[Hee Kyung's acquaintance]
[Joo Hun's assistant]
