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
Park Sae-mi
Han Go-woon
Yoo Tae-hoon
Choi Man-shik
Ahn Hyun-gyu
Kim Si-hyun
Ha Ji-young
Lee Joo-hun
Mr. Oh
Se-mi's Friend
Kim Ga-young
Joo Hye-min
Comic Store Owner
Lee Ye-rim
Disciplinary Teacher
Vice-principal
Selena Lee
Yoo Gang-hyeon
Classmate
Woo-hyeon's Girlfriend