Kim Dong-hee

Oh Ji-soo

Park Ju-hyun

Bae Gyu-ri

Jung Da-bin

Seo Min-hee

Nam Yoon-su

Kwak Ki-tae

Kim Yeo-jin

Lee Hae-gyoung

Choi Min-soo

Lee Wang-cheol

Park Hyuk-kwon

Cho Jin-woo

Seo Ye-hwa

Na Seong-mi

Kim Kwang-kyu

Byung-kwan

Baek Joo-hee

Cho Mi-jun

Im Gi-hong

Ryu Dae-yeol

Lee Hyun-gul

Kkakdugi

Park Ho-san

Oh Jung-jin

Shim Yi Young

Gyu-ri's Mother

Kim Young-pil

Gyu-ri's Father

Woo Da-vi

Soo-ji

Lee Jae-Baek

Kang Bbang

Lee Seung-wook

Chae-bin

Kim Yi-kyeong

Kim Ji-ye

Park Bo-Mi

Cho Min-joo

Kwon Han-sol

Hye-min

Kang Seol

Lee Na-eun

Shin Myung-sung

Lim Tae-woo

Lauren Han

Minhee (voice: English version)

Min Bok-gi

[Dean of students]