Director
Screenwriter
Main Role
-
Kim Mu YeolNa Hwa JinMain Role -
Lee Sung MinChoi Gang SeokMain Role -
Jin Ki JooIm Han RimMain Role -
P.OBong Geun DaeMain Role
Support Role
-
Kim Jong SooHwang Gi Tae [Assemblyman]Support Role -
Lee Bong JoonCho Gyu Cheol [Ga Yun's student]Support Role -
Kim Byung ChunLee Cheol MyeonSupport Role
Guest Role
-
Kim Eun SeokPrincipal Kim (Ep. 1)Guest Role -
Kim Do GeonKim Gwang Su (Ep. 1)Guest Role -
Jeong Soo HyunPark Dae Seok [Student] (Ep. 1)Guest Role -
Lee Seung GyuRyu Jun Hyeong [Bully student] (Ep. 1)Guest Role -
Song Young GyuRyu Jong Pil [Jun Hyeong's father] (Ep. 1)Guest Role -
Jeon Kwang Jin[Teacher] (Ep. 1)Guest Role -
Kwak Kyoung Hwa[Teacher] (Ep. 1)Guest Role -
Park Wan Kyu[Dae Seok’s father] (Ep. 1)Guest Role -
Choi In Sun[Subsitute teacher] (Ep. 1)Guest Role -
Jin Shi Won[Reporter] (Ep. 1-2)Guest Role -
Kim Chan HyungDu Mok (Ep. 2)Guest Role -
Lee Kwang HeeGwang Gi [Bully student] (Ep. 2)Guest Role -
Lee Tae HwanJang Gwon Hyeok [Bully student] (Ep. 2)Guest Role -
Seong No Jin[Principal] (Ep. 2)Guest Role -
Byun Yoon Jeong[Hyeong Ju’s mother] (Ep. 2)Guest Role -
Choi Sol Hui[Assemblywoman] (Ep. 2-3)Guest Role -
Ok Jin UkCho In Beom (Ep. 2, 4)Guest Role -
Jeon Bong SeokKim Hyeong Ju (Ep. 2, 4)Guest Role -
Yoo Tae JooPark Seong Hwan (Ep. 2, 4)Guest Role -
Seo Dong HyunO Jung Hwan (Ep. 3)Guest Role -
Park Bo BaePark Hyeon Ju (Ep. 3)Guest Role -
Kwon HyukKo Yeong Su [Teacher] (Ep. 3)Guest Role -
Park Yong[Principal] (Ep. 3)Guest Role -
Jeong Seo Yeon[Yeong Su’s wife] (Ep. 3)Guest Role -
Lee Si Young[Seon Yeong’s friend] (Ep. 3)Guest Role -
Park Seo YoonHan Ye Ri [Bully student] (Ep. 3-4)Guest Role -
Lee Sang HeeJung Seon Yeong [So Yeon's high school teacher] (Ep. 3, 10)Guest Role -
Sim Su BinJung Su Jeong [Student] (Ep. 4)Guest Role -
Bae Jun HyungPark Hyeon Ung [Student] (Ep. 4)Guest Role -
Choi Duk MoonCheon Sang Yeol [Head of Academic Affairs] (Ep. 4)Guest Role -
Han Ki Jang[Lawyer] (Ep. 4)Guest Role -
Lee Hannury[Teacher] (Ep. 4)Guest Role -
Park Seung Hyun[Detective] (Ep. 4)Guest Role -
Kim Tae Yoo[Institute staff] (Ep. 4)Guest Role -
Lee Dong Ho[Institute teacher] (Ep. 4)Guest Role -
Kim Seon Hwa[Su Jeong's mother] (Ep. 4)Guest Role -
Gu Bon Jin[Hyeon Ung's father] (Ep. 4)Guest Role -
Park Kwan Woo[Han Rim's classmate] (Ep. 4)Guest Role -
Ok Il Jae[Prosecutors' office investigator] (Ep. 4)Guest Role -
Seo Kwang Jae[Hearing chairperson] (Ep. 4)Guest Role -
Son Da Yeon[Han Rim's classmate] (Ep. 4)Guest Role -
Lee Seung Jin[Teacher] (Ep. 4)Guest Role -
Lee So Geum[Detective] (Ep. 4)Guest Role -
Baek Ji Hye[Gi Tae's assistant] (Ep. 4, 9)Guest Role -
Kim Ye RinYeon Seo (Ep. 5)Guest Role -
Jang Hee JungLee Yeong Mi (Ep. 5)Guest Role -
Kang Ji EunKim Ji Eun [Principal] (Ep. 5)Guest Role -
Song Si AnChoi Ji Seon [Teacher] (Ep. 5)Guest Role -
Park Ji YunLee Ji Yeong [U Jin's mother] (Ep. 5)Guest Role -
Kwon Dong HoKim Seok Hyeon [U Jin's father] (Ep. 5)Guest Role -
Choi Ja WoonKim U Jin [Hyeonjung elementary school student] (Ep. 5)Guest Role -
Choi E Jun[Student] (Ep. 5)Guest Role -
Kim Eun Ho[Student] (Ep. 5)Guest Role -
Park Si Hyeon[Student] (Ep. 5)Guest Role -
Han So Hyun[Bank teller] (Ep. 5)Guest Role -
Lee Eun Joo[Prosecutor] (Ep. 5)Guest Role -
Kim Sung Yong[Bank manager] (Ep. 5)Guest Role -
Lee Ji Hae[Seo Jun's mother] (Ep. 5)Guest Role -
Han Seon Ae[Student's mother] (Ep. 5)Guest Role -
Kim Su Yeong[Student's mother] (Ep. 5)Guest Role -
Yoon Hyun Gil[Jin Seon's mother] (Ep. 5)Guest Role -
Choi Young Min[Ministry of Education staff] (Ep. 5)Guest Role -
Park Gang To[Ministry of Education staff] (Ep. 5)Guest Role -
Kim Chae EunO Yun Jin (Ep. 6)Guest Role -
Lee Hyung JooTeacher Lee (Ep. 6)Guest Role -
Kim Yu Bin[Student] (Ep. 6)Guest Role -
Eom Ji Man[Detective] (Ep. 6)Guest Role -
Ahn Chan Woong[Detective] (Ep. 6)Guest Role -
Bae Seong Il[Prison warden] (Ep. 6)Guest Role -
Yeo Min Goo[Min Su's father] (Ep. 6)Guest Role -
Cho Yu Jin[Ji Ung's mother] (Ep. 6)Guest Role -
Jang Ji Yong[Du Hyeon's father] (Ep. 6)Guest Role -
Kim Kyun HaKim Su Gyeom (Ep. 6-7)Guest Role -
Do Geon WuNa Jung Hwan (Ep. 6-7)Guest Role -
Jang Yo HoonMin Ji Ung [Four Juvenile Delinquents' leader] (Ep. 6-7)Guest Role -
Bae Jae YoungLee Jae Yun [Student] (Ep. 7)Guest Role -
Jo Eun SolSin Ji Su [Illegal gambling site ringleader] (Ep. 7)Guest Role -
Seo Hye Min[Teacher] (Ep. 7)Guest Role -
Choi Joon Kyu[Gang member] (Ep. 7)Guest Role -
Chun Myung Woo[Gang member] (Ep. 7)Guest Role -
Jo Hyun Woo[Jae Yun's father] (Ep. 7)Guest Role -
Lee Seo Won[Jae Yun's mother] (Ep. 7)Guest Role -
Lee Jae Woong[ERPB security guard] (Ep. 7)Guest Role -
Kim Tae YoungJung Hyeon Min [Student] (Ep. 8)Guest Role -
Yoon Young Min[Advisor] (Ep. 8)Guest Role -
Chang Eun A[Da Hui's mother] (Ep. 8)Guest Role -
Seo Young Hee[Hyeon Min's mother] (Ep. 8)Guest Role -
Lee Seok Jun[Hyeon Min's father] (Ep. 8)Guest Role -
Cho Yeon Jin[Yeong Jun's mother] (Ep. 8)Guest Role -
Jo Jae Young[Detective] (Ep. 8)Guest Role -
Kim Eun Young[School nurse] (Ep. 8)Guest Role -
Kim Da HwinAttorney Yun (Ep. 9)Guest Role -
Park Ji Won[Chi Ho's mother] (Ep. 9)Guest Role -
Jeon Young[Seong Gu's mother] (Ep. 9)Guest Role -
Uhm Ju YeonLee Ji Hyo (Ep. 9)Guest Role -
Jung Jong Yul[Committee chairman] (Ep. 9)Guest Role -
Kim Min Suk[Parole examiner] (Ep. 9)Guest Role -
Kim Kwan Jang[Jinwon High School parent] (Ep. 9)Guest Role -
Kim Jae SeonLee Chi Ho [Gang leader] (Ep. 9-10)Guest Role -
Lee Woo JeJang Seong Gu [Student] (Ep. 9-10)Guest Role -
Moon Dong HoSeo Jin Hyeok (Ep. 9-10)Guest Role -
Lee Ga YeonHam Yu Ri (Ep. 10)Guest Role -
Jeon Seung HunSeo Tae Hun [Bully student] (Ep. 10)Guest Role -
Ha Na Ri[Teacher] (Ep. 10)Guest Role -
Dok Ko Kwang[Teacher] (Ep. 10)Guest Role -
Park Jae Hwi[Athlete] (Ep. 10)Guest Role -
Baek Na Gyeong[Soyeon High School student] (Ep. 10)Guest Role -
Ha YoungChoi Ga Yun [Hwa Jin's fiancee]Guest Role -
Choi Jae SubKang Jun Man [Correctional Officer]Guest Role
Cameo
-
MimiminuMimiminu (Ep. 4)Cameo
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