Seo Su-bin

Lee Jooin

Jang Hye-jin

Kang Taesun

Kim Jeong-sik

Jang Suho

Kang Chae-yun

Gong Yura

Lee Jae-hee

Lee Haein

Park Ji-yun

Jang Noori

Kim Ye-chang

Park Chanwoo

Go Min-si

Han Mido

Lee Sang-hee

Yang Boa

Lee Dae-yeon

Oh Daehan

Kim Suk-hoon

Lee Kidong

Baek Hyun-joo

Lee Injoo

Byun Joong-hee

Bae Yunja

Moon Hye-in

Ms. Song

Kim Min-ji

Kwon Somi

O Jung-won

Hong Bomi

Kim Yun-jeong

Pyo Dami

Choi Ga-in

Choi Miyun

Son Seung-beom

Son Beom

Lee Seo-i

Lee Munha

Kim Ji-min

Kim Jiyeon

Jung Eun-kyoung

school principal

Kim Joon-bum

dean of students

Kim Geu-lim

lawyer

Kim Do-hyeong

Suho's father

Lim Jae-hyeok

Classmate

Lee Seung-eun

Bar

Choi Gang-hyun

Broadcasting station male senior