Kim Moo-yul

Na Hwa-jin

김무열

Lee Sung-min

Choi Kang-seok

이성민

Jin Ki-joo

Im Han-rim

진기주

피오

Bong Geun-dae

Kim Jong-soo

Hwang Gi-tae

김종수

Ahn Ha-young

Choi Ga-yun

하영

이봉준

Cho Gyu-cheol

이찬용

Kim Gyeong-min

이승규

Ryu Jun-hyeong

정수현

Park Dae-seok

김도건

Kim Gwang-su

전봉석

Kim Hyeong-ju

옥진욱

Cho In-beom

유태주

Park Seong-hwan

이태환

Jang Kwon-hyuk

성노진

Principal

Byun Yun-jeong

Hyeong-ju's mother

변윤정

Kim Chan-hyung

Du-mok

김찬형

Lee Sang-hee

Jung Seon-yeong

이상희

박서윤

Han Ye-ri

김세연

Jung So-yeong

권혁

Ko Yeong-su

이시영

Seon-yeong's friend

정서연

Yeong-su's wife

Park Yong

Principal

박용

서동현

Oh Jung-hwan

Park Bo-bae

Park Hyeon-ju

박보배

윤운영

Teacher

최덕문

Cheon Sang-yeol

배준형

Park Hyeon-ung

Sim Su-bin

Jung Su-jeong

심수빈

김선화

Su-jeong's mother

김병춘

Lee Cheol-myeon

송시안

Choi Ji-seon

윤현길

Ji-seon's mother

장희정

Lee Young-mi

최자운

Kim U-jin

Park Ji-yeon

Lee Ji-young

박지연

김예린

Yeon-seo

권동호

Kim Seok-hyeon

강지은

Kim Ji-eun

장요훈

Min Ji-ung

임현묵

Yun Min-su

윤태식

Lee Du-hyeon

최현준

Choi U-seong

김채은

Oh Yun-jin

김균하

Kim Su-gyeom

도건우

Na Jung-hwan

배재영

Lee Jae-yun

조은솔

Shin Ji-su

조준호

Ji Seong-bin

김태영

Jung Hyeon-min

서영희

Hyeon-min's mother

이석준

Hyeon-min's father

윤영민

Consultant

조연진

Yeon-jun's mother

장은아

Da-hui's mother

이우제

Jang Seong-gu

김재선

Lee Chi-ho

김다흰

Yoon Tae-gyeong

Baek Ji-hye

Gi-tae's assistant

백지혜

Choi Jae-sub

Kang Jun-man

최재섭

이가연

Ham Yu-ri

전승훈

Seo Tae-hoon

소이한

Kim In-jun

Kang Joon

Kim Hak-jae

송영규

Ryu Gwang-pil

김은석

Principal Kim

Lee Ha-ye

Lee Min-ji

Lim Su-yeon

Kim Na-rae

Jang So-yun

Lee Na-yun

전광진

Teacher

Kwak Kyoung-hwa

Teacher

Choi In-sun

Substitute teacher

박완규

Dae-seok's father

이광희

Lee Gwang-hee

Ham Jae-hyun

Ham Jae-hyun

박우영

Electrical student

Lee Dong-gi

Electrical student

Gu Bon-jin

Hyeon-ung's father

Bae Seong-il

Prison warden

배성일

Choi Jun-gyu

Gang member

Choi Yi-jun

Student

최이준

Ha Na-ri

Teacher

Han Ki-jang

Lawyer

Kim Eun-ho

Student

김은호

Kim Eun-young

School nurse

Kim Seong-yong

Bank manager

김성용

Kim Tae-yoo

Institute staff

Lee Ho-chul

Reporter

이호철

Lee Su-ho

Kang Seo-jun

김관장

Student's parent

김대근

MZ gang member

박강토

Ministry of Education staff

박관우

Han-rim's classmate

박지원

Chi-ho's mother

안찬웅

Detective

엄지만

Detective

유인혜

U-seong's mother

이서원

Jae-yun's mother

이소금

Detective

이승노

Jung Hyun-tae

이승진

Teacher

이재웅

ERPB security guard

이지해

Seo-jun's mother

장지용

Du-hyeon's father

전영

Seong-gu's mother

전영웅

MZ gang member

정종열

Committee chairman

조유진

Ji-ung's mother

조재영

Detective

진시원

Reporter

천명우

Gang member

최영민

Ministry of Education staff

한누리

Teacher