Who Are You: School 2015 (2015)

Cinematography

• 
  Kim Gwang Su

Composer

• 
  Gaemi

Director

• 
  Baek Sang Hoon
• 
  Kim Seong Yoon

Executive Producer

• 
  Oh Hwan Min

Screenwriter

• 
  Kim Hyun Jung
• 
  Im Ye Jin
• 
  Kim Min Jung

Main Role

• 
  Kim So Hyun

  Lee Eun Bi | Go Eun Byul

  Main Role
• 
  Nam Joo Hyuk

  Han Yi An

  Main Role
• 
  Yook Sung Jae

  Kong Tae Gwang

  Main Role

Support Role

• 
  Lee Pil Mo

  Kim Joon Seok [Teacher]

  Support Role
• 
  Jo Soo Hyang

  Kang So Yeong

  Support Role
• 
  Kim Hee Jung

  Cha Song Joo

  Support Role
• 
  Lee Cho Hee

  Lee Shi Jin

  Support Role
• 
  David Lee

  Park Min Joon

  Support Role
• 
  Park Doo Shik

  Kwon Gi Tae

  Support Role
• 
  Lee Hwa Kyum

  Jo He Na

  Support Role
• 
  Kim Bo Ra

  Seo Young Eun

  Support Role
• 
  Kim Min Seok

  Min Seok

  Support Role
• 
  Kim Jung Nan

  Shin Jung Min [Min Joon's mother]

  Support Role
• 
  Kim Se Ah

  Shin Yi Yeong [Shi Jin's mother]

  Support Role
• 
  Jeon Mi Seon

  Song Mi Kyung [Eun Byul's mother]

  Support Role
• 
  Park Ah Sung

  Ah Sung

  Support Role
• 
  Lee Dae Yeon

  Han Gi Choon [Yi An's father]

  Support Role
• 
  Jeon Noh Min

  Gong Jae Ho [Tae Kwang's father]

  Support Role
• 
  Jung In Ki

  Park Joon Hyung [Min Joon's father]

  Support Role
• 
  Jo Duk Hyun

  Kang Il San [So Yeong's father]

  Support Role
• 
  Lee Hee Do

  [Vice Principal]

  Support Role
• 
  Shin Jung Keun

  [Student Supervisor]

  Support Role
• 
  Jung Jae Eun

  [So Yeong's mother]

  Support Role
• 
  Jang In Sub

  Seong Yoon Jae

  Support Role
• 
  Choi Hyo Eun

  Hyo Eun

  Support Role
• 
  Lee Seung Ho

  Himself

  Support Role
• 
  Kim Min Young

  Lee Soo Mi [So Yeong's friend]

  Support Role
• 
  Lee Shi Won

  Jung Min Young [Soo In's sister]

  Support Role
• 
  Choi Dae Chul

  [Swim team coach]

  Support Role
• 
  Jung Soo Young

  An Joo Ri

  Support Role
• 
  Lee Jae In

  Ra Jin

  Support Role
• 
  Park Hwan Hee

  Kyeong Jin

  Support Role
• 
  Ji Ha Yoon

  Ha Yoon

  Support Role
• 
  Han Sung Yun

  Sung Yeon

  Support Role
• 
  Oh Woo Jin

  Woo Jin

  Support Role
• 
  Oh Yoon Hong

  [Soo In's mother]

  Support Role
• 
  Jung In Seo

  Jung Soo In (Ep. 12)

  Support Role
• 
  Yoo Yeon Mi

  Yeon Mi Joo

  Support Role
• 
  Kwon Eun Soo

  Eun Soo

  Support Role
• 
  Kim Min Gue

  [Swimming Team Member]

  Support Role
• 
  Lee Kang Min

  [Swimming club senior]

  Support Role
• 
  Cho Byeong Kyu

  Byeong Gyoo

  Support Role
• 
  Lee Jung Eun

  [Young Eun's mother] (Ep. 2-3)

  Support Role
• 
  Lee Jin Kwon

  Jin Kwon

  Support Role

Guest Role

• 
  Park Young Soo

  [Karaoke owner] (Ep. 2)

  Guest Role
• 
  Choi Soo Rin

  [Tae Gwang's mother]

  Guest Role
• 
  Bae Soo Bin

  Kim Seul Yeong (Ep.16) [Teacher]

  Guest Role
• 
  Sam Hammington

  Himself (Ep. 15) [English Teacher]

  Guest Role
• 
  Yang Hee Kyung

  Park Min Kyung (Ep.1 & 4)

  Guest Role
• 
  Ko Woo Rim

  Han Yi An [Child]

  Guest Role
• 
  Kim Ga Young

  [School uniform model] (Ep. 6)

  Guest Role
• 
  Kim Jin Yi

  [Health teacher]

  Guest Role
• 
  Oh Hee Joon

  [Food delivery man] (Ep. 9)

  Guest Role
• 
  Kim Gwang In Guest Role
• 
  Kim Ye Jun

  Gong Tae Kwang [Young]

  Guest Role
• 
  Jung Ye Nok

  [Secret private lesson student]

  Guest Role
• 
  Yeo Woon

  [School team swimmer] (Ep. 2, 5, 11, 16)

  Guest Role
• 
  Kang Ji Woo

  Lee Eun Bi / Go Eun Bi / Go Eun Byul

  Guest Role
• 
  Ahn Won Jin Guest Role
• 
  Lee Ye Eun

  [Eun Bi / Eun Byul’s body double]

  Guest Role
• 
  Seo Dong Hyun

  Shi Woo

  Guest Role
• 
  Ahn Sung Hoon

  Dong Gu

  Guest Role
• 
  Kim Yoon Seol

  [Bus passenger] (Ep.9)

  Guest Role

Unknown

• 
  Park Seung Joon Unknown