School 2021 (2021)

Director

• 
  Kim Min Tae

Screenwriter

• 
  Dong Hee Seon
• 
  Jo Ah Ra

Main Role

• 
  Kim Yo Han

  Kong Ki Joon

  Main Role
• 
  Choo Young Woo

  Jung Young Joo

  Main Role
• 
  Cho Yi Hyun

  Jin Ji Won

  Main Role
• 
  Hwang Bo Reum Byeol

  Kang Seo Young

  Main Role
• 
  Kim Kang Min

  Ji Ho Sung

  Main Role
• 
  Seo Hee Seon

  Ko Eun Bi

  Main Role

Support Role

• 
  Jun Suk Ho

  Lee Kang Hoon [Teacher]

  Support Role
• 
  Kim Gyu Seon

  Song Chae Rin [Teacher]

  Support Role
• 
  Lee Ji Ha

  Koo Mi Hee

  Support Role
• 
  Kim Min Sang

  Lee Han Soo [Head of the school affairs department]

  Support Role
• 
  Park Keun Rok

  Shin Chul Min

  Support Role
• 
  Shin Chul Jin

  Oh Jang Seok [Principal]

  Support Role
• 
  Go Eun Min

  Kim Young Na [Teacher]

  Support Role
• 
  Im Jae Geun

  Yeo Sam Yeol [Teacher]

  Support Role
• 
  Yoon Yi Reh

  Lee Jae Hee [Jae Hyuk's twin]

  Support Role
• 
  Lee Sang Jun

  Lee Jae Hyuk [Jae Hee's twin]

  Support Role
• 
  Lee Ha Eun

  Jung Min Seo

  Support Role
• 
  Kim Nu Rim

  Jeon Jong Bok

  Support Role
• 
  Kim Jin Gon

  Hong Min Ki

  Support Role
• 
  Park Ga Ryul

  Jo Tae Ri

  Support Role
• 
  Jeong Ye Seo

  Lee Hyo Joo

  Support Role
• 
  Kim Cha Yoon

  Kim Myung A

  Support Role
• 
  Cha Joo Wan

  Choi Tae Kang [Seo Young's suitor]

  Support Role
• 
  Park In Hwan

  Kong Young Soo [Ki Joon's grandfather]

  Support Role
• 
  Jo Seung Yun

  Jin Deok Kyu [Ji Won's father]

  Support Role
• 
  Kim Soo Jin

  Jo Yong Mi [Ji Won's mother]

  Support Role
• 
  Kim Ye Ji

  Jin Jin Soo [Ji Won's sister]

  Support Role
• 
  Jo Ryeon

  Kim Sun Ja [Young Joo's mother]

  Support Role
• 
  Noh Ha Yeon

  Lee Ah Reum [Kang Hoon's daughter]

  Support Role
• 
  Kim Hee Chang

  Koo Byung Chul

  Support Role
• 
  Jang Tae Min

  Jo Jae Min [Baro Furniture]

  Support Role
• 
  Seo Jae Woo

  Chul Joo Jeong [Young Joo's Brother]

  Support Role

Guest Role

• 
  Tae In Ho

  Kim Moo Myung [Teacher] (Ep. 1)

  Guest Role
• 
  Kwon Tae Jin

  [Taekwondo coach] (Ep. 1)

  Guest Role
• 
  Min Jin Woong

  Jung Min (Ep. 1)

  Guest Role
• 
  Shin Gi Hwan

  [Ji Won's co-worker / Lion Espresso & Burger employee] (Ep. 1-2, 10)

  Guest Role
• 
  Park Ye Rin

  Jin Ji Won [Young] (Ep. 1, 4-5)

  Guest Role
• 
  Hong Joo Hyung

  [Yudal Trading company staff] (Ep. 1, 4, 12)

  Guest Role
• 
  Seon Yool Woo

  [Yudal Trading company staff] (Ep. 1, 4, 12)

  Guest Role
• 
  Jang Sun Yool

  Kong Ki Joon [Child] (Ep. 1, 4-5, 13)

  Guest Role
• 
  Seo Young Sam

  [Visitor to the apprentice’s offices] (Ep. 2)

  Guest Role
• 
  Kim Sang Il

  [Mi Hee's assistant] (Ep. 2-3)

  Guest Role
• 
  Kim Jung Chul

  Jung Young Joo [Young] (Ep. 2, 4, 8)

  Guest Role
• 
  Cha Sung Je

  Cha Kyung Min [Young] (Ep. 2, 8)

  Guest Role
• 
  Moon Woo Jin

  Kong Ki Joon [Young] (Ep. 2, 8, 11)

  Guest Role
• 
  Jung Shi Yool

  Ji Ho Sung [Child] (Ep. 4)

  Guest Role
• 
  Choi Young In

  [Nun] (Ep. 4, 8, 12)

  Guest Role
• 
  Lee Ji Hoon

  Kim [Professor] (Ep. 5-6)

  Guest Role
• 
  Kim Oh Bok

  [Carpentry competition MC] (Ep. 6)

  Guest Role
• 
  Park Jin Soo

  Lee Ji Ah (Ep. 7)

  Guest Role
• 
  Jung Ye Bin

  Kim Sung Shil (Ep. 7)

  Guest Role
• 
  Na Ho Won

  [Bus driver] (Ep. 7)

  Guest Role
• 
  Lee Hye Ra

  [Academy parent] (Ep. 7)

  Guest Role
• 
  Lee Yoon Sang

  [Judge] (Ep. 7)

  Guest Role
• 
  Kim Yong Jin

  Lee Gyu Suk [Attorney] (Ep. 7, 9, 13)

  Guest Role
• 
  Kim Han Sang

  [Sang Rim House Architecture Employee] (Ep. 8)

  Guest Role
• 
  Yoo Dam Yeon

  [Kyung Min's mother] (Ep. 8, 11)

  Guest Role
• 
  Yoo Yong

  [Talent agency interviewer] (Ep. 9)

  Guest Role
• 
  Park Young Bok

  Man Soo (Ep. 10)

  Guest Role
• 
  Kim Hwan

  [Lion Espresso & Burger employee] (Ep. 10)

  Guest Role
• 
  Ahn Bok Ja

  [Grandma waiting for grandson] (Ep. 11)

  Guest Role
• 
  Lee Do Hye

  Jung Da Hye (Ep. 12)

  Guest Role
• 
  Yoon Cha Young

  Yoo Mi Kyoung (Ep. 12)

  Guest Role
• 
  Goo Jae Yeon

  [Chae Rin's mother] (Ep. 12)

  Guest Role
• 
  Oh Ki Hwan

  [Upset father] (Ep. 12)

  Guest Role
• 
  Park Jin U

  [Kid jumping on bench] (Ep. 12)

  Guest Role
• 
  Kim Yoon Seol

  [Seo Young's friend] (Ep. 12)

  Guest Role
• 
  Kim Bum Suk

  [Attorney] (Ep. 13)

  Guest Role
• 
  Lee Woo Shin

  [Judge] (Ep. 13)

  Guest Role
• 
  Noh Hee Joong

  [Chung Tan Constructions Employee] (Ep. 13)

  Guest Role
• 
  Song Chang Gyu

  [Chung Tan Constructions Employee] (Ep. 13)

  Guest Role
• 
  Jang Eui Don

  [Chung Tan Constructions Employee] (Ep. 13)

  Guest Role
• 
  In Sung Ho

  [Chung Tan Constructions Manager] (Ep. 13)

  Guest Role
• 
  Kim Kwang Suk

  [Chung Tan Constructions Internal investigator] (Ep. 13)

  Guest Role
• 
  Park Byung Wook

  Security guard Park (Ep. 14)

  Guest Role
• 
  Lee Won Jin

  [Policeman] (Ep. 14-15)

  Guest Role
• 
  Seo Kwang Jae

  [Doctor] (Ep. 14, 16)

  Guest Role
• 
  Lee Moon Soo

  Shin Eul Seop [CEO] (Ep. 14, 16)

  Guest Role
• 
  Park Jin Soo

  Ko Byun Ho [Reporter] (Ep. 15)

  Guest Role
• 
  Shin Hee Chul

  Choi Hyun Gyu [Reporter] (Ep. 15)

  Guest Role
• 
  Uhm Tae Ok

  [Cheol Min's assistant] (Ep. 15)

  Guest Role
• 
  Shin Hee Gook

  [Eun Bi's assistant] (Ep. 15)

  Guest Role
• 
  Hwang Joo Ho

  [Editor] (Ep. 15)

  Guest Role
• 
  Kim Sa Hun

  [Reporter] (Ep. 15)

  Guest Role
• 
  Lee Kan Hee

  [Ki Joon's mother] (Ep. 16)

  Guest Role
• 
  Ahn Se Min

  [Music Bank MC] (Ep. 16)

  Guest Role
• 
  Hwang Ji A

  [Announcer voice]

  Guest Role
• 
  Yim So Yun

  Yoon Sol Bin

  Guest Role