Duty after School: Part 1

Cinematography

• 
  Han Jung Hee

Costume Designer

• 
  Hong Soo Hee

Director

• 
  Sung Yong Il

Editor

• 
  Kim Soo Hyun

Executive Producer

• 
  Jang Jung Do

Music Editor

• 
  Park Eun Woo

Original Creator

• 
  Ha Il Kwon

Screenwriter

• 
  Lee Nam Gyu

Main Role

• 
  Shin Hyun Soo

  Lee Chun Ho

  Main Role
• 
  Lee Soon Won

  Kim Won Bin

  Main Role
• 
  Kim Ki Hae

  Kim Chi Yeol

  Main Role
• 
  Choi Moon Hee

  Lee Na Ra

  Main Role
• 
  Kim Su Gyeom

  Kwon Il Ha

  Main Role
• 
  Lee Yeon

  No Ae Seol

  Main Role
• 
  Kwon Eun Bin

  Yeon Bo Ra

  Main Role
• 
  Moon Sang Min

  Wang Tae Man

  Main Role
• 
  Woo Min Gyu

  Kim Deok Joong

  Main Role

Support Role

• 
  Kim Min Chul

  Do Soo Cheol

  Support Role
• 
  Kim So Hee

  Lee Soon Yi

  Support Role
• 
  Ahn Do Kyu

  Gook Yeong Soo

  Support Role
• 
  Shin Hye Ji

  Choi Yeon Joo

  Support Role
• 
  Shin Su Hyun

  Cha So Yeon

  Support Role
• 
  Yeo Joo Ha

  Kim Yoo Jeong

  Support Role
• 
  Oh Gi Gwang

  Cho Jang Su

  Support Role
• 
  Ahn Da Eun

  Kim In Hye

  Support Role
• 
  Hwang Se In

  Yoo Ha Na

  Support Role
• 
  Ji Min Hyuk

  Jo Young Shin

  Support Role
• 
  Hong Xa Bin

  Woo Hee Rak

  Support Role
• 
  Shin Myung Sung

  Lim Woo Taek

  Support Role
• 
  Oh Se Eun

  Hong Jun Hui

  Support Role
• 
  Kim Jung Ran

  Park So Yoon

  Support Role

Guest Role

• 
  Son Ji Na

  [Yeon Bo Ra's mother] (Ep. 1)

  Guest Role
• 
  Yoo Dam Yeon

  [Kim Chi Yeol's mother] (Ep. 1)

  Guest Role
• 
  Jang Hyuk Jin

  [Kim Chi Yeol's father] (Ep. 1)

  Guest Role
• 
  Shim So Young

  [Kook Young Soo's mother] (Ep. 1)

  Guest Role
• 
  Kim Do Yeon

  [Kim Deok Joong's mother] (Ep. 1)

  Guest Role
• 
  Seo Ji Young

  [Jang Young Hoon's mother] (Ep. 1)

  Guest Role
• 
  Woo Hyun Joo

  [Kwon Il Ha's mother] (Ep. 1)

  Guest Role
• 
  Kim Won Hae

  Choi Yong Sik (Ep. 1)

  Guest Role
• 
  Ahn Chang Hwan

  [Soldier] (Ep. 1)

  Guest Role
• 
  Jang Hyun Sung

  Park Sang Man [Minister of Defense] (Ep. 1)

  Guest Role
• 
  Kim Ye Won

  Angkko (Ep. 1)

  Guest Role
• 
  Han Myung Hwan

  [Soldier] (Ep. 1)

  Guest Role
• 
  Shin Min Soo

  [Teacher] (Ep. 1)

  Guest Role
• 
  Lee Dong Gyu

  [Anchorman] (Ep. 1)

  Guest Role
• 
  Noh Jong Hyun

  Jang Yeong Hoon (Ep. 1-2)

  Guest Role
• 
  Im Se Mi

  Park Eun Young (Ep. 1-2)

  Guest Role
• 
  Lee Jung Min

  Seo Ja Yoon (Ep. 1-2)

  Guest Role
• 
  Shin Jae Hwi

  Corporal Park (Ep. 1-2)

  Guest Role
• 
  Lee Jang Won

  [Math teacher] (Ep. 2)

  Guest Role
• 
  Sung Ji Ru

  Park Yeong Il (Ep. 2-3)

  Guest Role
• 
  Jung Dong Geun

  Park Jung Hoo (Ep. 3)

  Guest Role
• 
  Noh Sung Eun

  [Soldier] (Ep. 3)

  Guest Role
• 
  Kim Si Kook

  [Teacher] (Ep. 3)

  Guest Role
• 
  Kim Min Ah

  [Student] (Ep. 3)

  Guest Role
• 
  Lee Jae Hak

  [Student] (Ep. 3)

  Guest Role
• 
  Lee Dong Yong

  [Commander] (Ep. 4)

  Guest Role
• 
  Eum Moon Suk

  Park Jin Soo (Ep. 4)

  Guest Role
• 
  Song Yo Sep

  Yoon Bum Sun (Ep. 5)

  Guest Role
• 
  Yoo Sung Joo

  Cha Moon Hyeok (Ep. 5)

  Guest Role
• 
  Kim Yong Jin

  Han Hyun Joong (Ep. 5)

  Guest Role
• 
  Park Jung Yeon

  Park Yoon Seo (Ep. 5-6)

  Guest Role
• 
  Yoo Jun

  Park Jae Won (Ep. 6)

  Guest Role
• 
  Park Jin Soo

  Lee Ji Min (Ep. 6)

  Guest Role
• 
  Noreen Joyce Guerra

  [Student]

  Guest Role
• 
  Lee Seo Yul

  [Student]

  Guest Role
• 
  Lee Jong Hyun

  Park Hae Jun [Corporal] (Ep. 1-2)

  Guest Role