Live

Composer

• 
  Choi Seong Gwon

Director

• 
  Kim Kyu Tae

Screenwriter

• 
  Noh Hee Kyung

Main Role

• 
  Jung Yu Mi

  Han Jung Oh

  Main Role
• 
  Lee Kwang Soo

  Yeom Sang Soo

  Main Role
• 
  Bae Seong Woo

  Oh Yang Chon

  Main Role
• 
  Bae Jong Ok

  Ahn Jang Mi

  Main Role

Support Role

• 
  Sung Dong Il

  Ki Han Sol

  Support Role
• 
  Jang Hyun Sung

  Eun Kyung Mo

  Support Role
• 
  Lee Eol

  Lee Sam Bo

  Support Role
• 
  Lee Si Eon

  Kang Nam Il

  Support Role
• 
  Shin Dong Wook

  Choi Myung Ho

  Support Role
• 
  Lee Joo Young

  Song Hye Ri

  Support Role
• 
  Kim Gun Woo

  Kim Han Pyo

  Support Role
• 
  Jo Wan Ki

  Kim Min Seok

  Support Role
• 
  Baek Seung Do

  Go Seung Jae

  Support Role
• 
  Lee Soon Won

  Ban Jong Min

  Support Role
• 
  Kim Jong Hoon

  Min Won Woo

  Support Role
• 
  Jang Hyuk Jin

  Lee Ju Yeong

  Support Role
• 
  Woo Hyun Joo

  Lee Soon Yung

  Support Role
• 
  Go Min Si

  Oh Song Yi

  Support Role
• 
  Jang Ho Joon

  Oh Dae Kwan

  Support Role
• 
  Yeom Hye Ran

  [Sang Soo's mother]

  Support Role
• 
  Lee Soon Jae

  [Yang Chon's father]

  Support Role
• 
  Lee Jae Woo

  Lee Dong Kyu

  Support Role

Guest Role

• 
  Nam Moon Chul

  Lee Sang Ho

  Guest Role
• 
  Cha Jong Ho

  Detective Jang

  Guest Role
• 
  Kim Jung Hwan

  Detective Jo

  Guest Role
• 
  Lee Dong Yong

  Kim Kyung Jin [Kyung Mi's drunk father]

  Guest Role
• 
  Oh Han Kyul

  Yeom Sang Soo [Young]

  Guest Role
• 
  Park Han Sol

  Han Jung Oh [Young]

  Guest Role
• 
  Yun Hae Bin

  Song Hye Ri [Young]

  Guest Role
• 
  Mun Ji Won

  Han Jung Oh [Young]

  Guest Role
• 
  Yoo Soo Bin

  [Police academy cadet]

  Guest Role
• 
  Seo Hye Jin

  [Nam Il's wife]

  Guest Role
• 
  Kim Tae Hoon

  Yeom Sang Joon [Sang Soo's elder brother] (Ep. 1)

  Guest Role
• 
  Park Ji Il

  [Jung Oh's father] (Ep.1)

  Guest Role
• 
  Jeon Seok Ho

  [Jung Oh's senior] (Ep.1)

  Guest Role
• 
  Hong Kyung

  Yoo Man Yong (Ep. 9-11)

  Guest Role
• 
  Kim Chang Hwan

  Hyung Uk [Sang Soo's friend] (Ep. 1)

  Guest Role
• 
  Jo Dal Hwan

  [Sang Su's partner]

  Guest Role
• 
  Ok Joo Ri

  [Colleague of Sang Su's mother] (Ep. 1)

  Guest Role
• 
  Kang Shin Il

  Ho Cheol [Detective] (Ep. 2)

  Guest Role
• 
  Go In Beom

  [Former parliamentarian] (Ep. 4)

  Guest Role
• 
  Kim Jae Chul

  [Fraudulent man]

  Guest Role
• 
  Kim Jin Seo

  [Police officer]

  Guest Role
• 
  Son Young Soon

  [Han Soon's mother]

  Guest Role
• 
  Kwak Min Ho

  [Gang boss]

  Guest Role
• 
  Ahn Do Kyu

  Seo Hyung

  Guest Role
• 
  Jeon Heon Tae

  [Man Yong's father] (ep.9,11)

  Guest Role
• 
  Park Shi Jin

  Choi Jin

  Guest Role
• 
  Choi Hong Il

  Min Soo Man [Apartment complex security guard]

  Guest Role
• 
  Park Chan Woo

  [Criminal]

  Guest Role
• 
  Jun Eun Mi

  [Court of law counselor]

  Guest Role
• 
  Kim Joo Ah

  [woman putting food in refrigerator]

  Guest Role
• 
  Jung Jong Woo

  [Sting operation] (Ep. 7)

  Guest Role
• 
  Choi Go

  [Boy from the Internet Cafe]

  Guest Role
• 
  Jin Hyun Kwang

  [Inspector]

  Guest Role
• 
  Park Gye Yoon

  [Man Yong’s friend]

  Guest Role
• 
  Jang Tae Min

  [Homemade gun killer] (Ep. 15)

  Guest Role
• 
  Jung Dong Gyu

  [National assembly member]

  Guest Role
• 
  Yeo Woon Bok

  [Hye Ri's father]

  Guest Role
• 
  Song Kyung Eui

  [Interviewer]

  Guest Role
• 
  Gu Da Song

  [Student secretly at nightclub] (Ep. 3)

  Guest Role
• 
  Myung Seok Geun

  [Police officer]

  Guest Role
• 
  Jeon Yeo Been

  Kim Young Ji [Jung Oh's Friend] (Ep. 1)

  Guest Role
• 
  Choi Hee Do

  [Copycat]

  Guest Role
• 
  Jang Hae Song

  [Sang Soo's mother's colleague's son] (Ep.1)

  Guest Role
• 
  Jo Ah Ra

  [PC room mother]

  Guest Role
• 
  Kim Chae Hyun

  [Student's mother]

  Guest Role
• 
  Moon Yong Il

  [Car center mechanic]

  Guest Role
• 
  Kim Seon Gyeong

  Lee Han Soon

  Guest Role
• 
  Ha Jin

  [Police officer]

  Guest Role
• 
  Kim Mi Hye

  [News anchor] (Ep. 2)

  Guest Role
• 
  Kwon Ban Suk

  [Adoptive father]

  Guest Role
• 
  Song Da Kyung

  [Anchor]

  Guest Role
• 
  Im Ga Young

  Seo Jin

  Guest Role
• 
  Kim Dae Hyun

  [Detective]

  Guest Role
• 
  Jin Ga Min

  [Motorcycle deliveryman] (Ep.10)

  Guest Role
• 
  Shin Hyun Jong

  [Taxi driver]

  Guest Role
• 
  Jo Seung Yeon

  [Domestic violence victim's mother]

  Guest Role
• 
  Suh Sang Won

  [Police officer] (Ep. 16)

  Guest Role
• 
  Kim Ji A

  [Criminal's daughter]

  Guest Role
• 
  Seo Sang Won

  [Police officer] (Ep. 16)

  Guest Role
• 
  Kim Eun Woo

  [Inspector]

  Guest Role
• 
  Kim Mi Ji

  [Student demonstrator]

  Guest Role
• 
  Jang Ho Jin

  [Criminal] (Ep. 2)

  Guest Role
• 
  Park Shin Woon

  [Clueless civil complainant] (Ep. 14-16)

  Guest Role
• 
  Shin Se Young

  [Policeman]

  Guest Role
• 
  Kim Il Hyun

  [Police officer]

  Guest Role
• 
  Kang Sung Hoon

  [Club president]

  Guest Role
• 
  Kim Gun

  Yeom Sang Joon [Sang Soo's brother]

  Guest Role
• 
  Jeon Soo Ji

  [Missing child's biological mother]

  Guest Role
• 
  Yoo Young Bin

  [Driver]

  Guest Role
• 
  Yoo Hyung Kwan

  [Disciplinary committee member]

  Guest Role
• 
  Kim Seo Yeon

  [Victim's fiancée] (Ep. 9)

  Guest Role
• 
  Lee Min Ryung Guest Role
• 
  Son Woo Hyeon Guest Role
• 
  Lee Won Jin Guest Role
• 
  Go Jin Myung Guest Role
• 
  Seong Chan Ho Guest Role
• 
  Yu In

  [Civil servant exam student]

  Guest Role
• 
  Shin Hee Gook Guest Role
• 
  Ham Jin Sung

  [Drunkard]

  Guest Role
• 
  Choi Kwang Il Guest Role
• 
  Seon Ah Rin Guest Role
• 
  Kim Byung Chul Guest Role
• 
  Han Jung Hyun Guest Role
• 
  Jeon Hyun Sook Guest Role
• 
  Oh Tae Eun

  [Market vendor] (Ep. 8)

  Guest Role
• 
  Lee Chae Min Guest Role
• 
  Lee Yang Hee Guest Role
• 
  Hong Sung Ho Guest Role
• 
  Lee Soo Min Guest Role
• 
  Min Sang Woo Guest Role
• 
  Park Geon Rak Guest Role
• 
  Na Do Yool Guest Role
• 
  Park Seung Joon Guest Role
• 
  Kim Ji Hwan Guest Role
• 
  Park Won Seok Guest Role
• 
  Lee Jin Kwon Guest Role
• 
  Lee Eun Chae Guest Role
• 
  Lee Se Wook Guest Role
• 
  Yoon Jong Goo Guest Role
• 
  Kim Min Joong Guest Role
• 
  Kim Sun Hye Guest Role

Unknown

• 
  Kim Yeon Ji Unknown