Justice

Director

• 
  Jo Woong

Original Creator

• 
  Jo Jang Ho

Screenwriter

• 
  Jung Chan Mi

Main Role

• 
  Choi Jin Hyuk

  Lee Tae Kyung

  Main Role
• 
  Son Hyun Joo

  Song Woo Yong

  Main Role
• 
  Nana

  Seo Yeon Ah

  Main Role
• 
  Park Sung Hoon

  Tak Su Ho

  Main Role

Support Role

• 
  Lee Hak Joo

  Ma Dong Hyeok [Detective]

  Support Role
• 
  Kim Hee Chan

  Song Dae Jin [Woo Yong's son]

  Support Role
• 
  Zuny

  Shin Seon Hee

  Support Role
• 
  Lee Seo Hwan

  Kook Jin Tae [Section chief]

  Support Role
• 
  Lee Seo An

  Jeong Hae Jin [Rookie actress]

  Support Role
• 
  Heo Dong Won

  Yang Chul Ki [Killer]

  Support Role
• 
  Kim Hyun Mok

  Lee Tae Joo [Tae Kyung's brother]

  Support Role
• 
  Jang In Sub

  Section Chief Choi [Chairman Song's right-hand man]

  Support Role
• 
  Jo Dal Hwan

  Nam Won Gi [Tae Gyeong's aide]

  Support Role
• 
  Yang Hyun Min

  Jang Ji Soo [CEO of Jang Entertainment]

  Support Role
• 
  Kim Min Seok

  Lee Dong Il [Young Mi's manager]

  Support Role
• 
  Kim Ji Hyun

  Cha Nam Shik [Chief Prosecutor]

  Support Role
• 
  Lee Hwang Ui

  Do Hoon Je [Director of National Tax Service] (Ep. 1)

  Support Role
• 
  Lee Ho Jae

  Seo Dong Suk [Yeon Ah's father / Candidate of Minister of Justice]

  Support Role
• 
  Lee Eol

  Woo Jong Ryeol [Public Prosecutor General]

  Support Role
• 
  Han Ki Joong

  Shin Il Hoon [Chairman of Ilshin Daily]

  Support Role
• 
  Lee Kang Wook

  Jo Hyeon Woo [Culprit of Lee Tae Joo's murder case]

  Support Role
• 
  Oh Man Seok

  Joo Man Yong [Chief Prosecutor]

  Support Role
• 
  Ji Hye Won

  Jang Young Mi [Rookie Actress]

  Support Role
• 
  Lee Bom So Ri

  Park Hyo Rim [Yeon Ah's colleague]

  Support Role
• 
  Song Deok Ho

  Shim Gwang Hee

  Support Role
• 
  Oh Kyung Joo

  [Prosecutor]

  Support Role

Guest Role

• 
  Lee Dae Yeon

  Kang Il Man [Detective]

  Guest Role
• 
  Jung Ji Ho

  [Reporter] (Ep.2)

  Guest Role
• 
  Lee Yoon Sang

  [Judge] (Ep.3)

  Guest Role
• 
  Im Jae Geun

  [Worker at Jungjin's factory]

  Guest Role
• 
  Park Seung Tae

  [Young Mi's grandmother] (Ep. 13, 20, 22, 26, 28-29)

  Guest Role
• 
  Han Gap Soo

  [Tak Soo Ho's father]

  Guest Role
• 
  Park Yong

  [Director who works for Tak Soo Ho]

  Guest Role
• 
  Yoo Ha Bok

  [Director Works for Tak Soo Ho]

  Guest Role
• 
  Kang Dong Yup

  [Tae Soo Ho's lawyer] (Ep. 29, 31)

  Guest Role
• 
  Lee Jung Sung

  [Judge] (Ep.30)

  Guest Role
• 
  Park Seong Kyun Guest Role
• 
  Jung Byung Ho Guest Role
• 
  Seong Chan Ho

  [Prison warden] (Ep. 31)

  Guest Role
• 
  Ok Joo Ri

  [Restaurant owner] (Ep. 32)

  Guest Role
• 
  Hong Suk Bin

  [Jungjin victim's father]

  Guest Role
• 
  Lee Sun Young

  [Bartender]

  Guest Role
• 
  Yang Hee Won

  [Boy in superhero costume]

  Guest Role
• 
  Park Joo Yong Guest Role
• 
  Park Han Sol Guest Role
• 
  Eom Ji Man

  [Detective] (Ep. 31)

  Guest Role

Unknown

• 
  Kim Jong Ho Unknown
• 
  Kim Seung Tae Unknown
• 
  Jang Young Hyun Unknown
• 
  Kim Sung Yeol Unknown
• 
  Kim Shin Yul Unknown