Good Casting

Director

• 
  Choi Young Hoon

Screenwriter

• 
  Park Ji Ha

Main Role

• 
  Choi Kang Hee

  Baek Chan Mi / Baek Jang Mi

  Main Role
• 
  Yoo In Young

  Im Ye Eun

  Main Role
• 
  Kim Ji Young

  Hwang Mi Sung

  Main Role
• 
  Lee Sang Yeob

  Yoon Suk Ho

  Main Role
• 
  Lee Jun Young

  Kang U Won

  Main Role
• 
  Lee Jong Hyuk

  Dong Gwan Soo

  Main Role

Support Role

• 
  Jung In Ki

  Seo Gook Hwan [NIS]

  Support Role
• 
  Park Kyung Soon

  Bae Moo Hyuk [NIS]

  Support Role
• 
  Hwang Bo Mi

  Gan Tae Hee [NIS agent]

  Support Role
• 
  Woo Hyun

  Myung Gye Chul [Il Kwang Hitech]

  Support Role
• 
  Lee Sang Hoon

  Tak Sang Gi

  Support Role
• 
  Kim Yong Hee

  Ok Chul [Il Kwang Hitech]

  Support Role
• 
  Heo Jae Ho

  Byun Woo Suk [Il Kwang Hitech]

  Support Role
• 
  Han Soo Jin

  Secretary Goo [Il Kwang Hitech]

  Support Role
• 
  Cha Su Yeon

  Shim Hwa Ran

  Support Role
• 
  Lee Seung Hyung

  Nam Bong Man

  Support Role
• 
  Bae Jin Woong

  Pi Chul Woong

  Support Role
• 
  Kim Bo Yun

  Nam Joo Yun

  Support Role
• 
  Won Ki Jun

  Kang Sung Joo

  Support Role
• 
  Kang Ro Chae

  Son So Ri [Il Kwang Hitech]

  Support Role
• 
  Jin Soo Hyun

  Hyo Jin [Il Kwang Hitech]

  Support Role
• 
  Kim Jin Ho

  Geum Dong Seok [NIS director]

  Support Role
• 
  Sung Hyuk

  Kwon Min Suk [NIS agent]

  Support Role
• 
  No Ha Yeon

  Kwon So Hee [Im Ye Eun's daughter]

  Support Role
• 
  Nam Jung Woo

  [NIS Agent]

  Support Role
• 
  Kim Kyung Sook

  Park Kyung Sook [Il Kwang Hitech]

  Support Role
• 
  Kim Dong Gyun

  [Management Co. CEO]

  Support Role

Guest Role

• 
  Seo Beom Shik

  [NIS agent] (Ep.8-9)

  Guest Role
• 
  Park Ok Chool

  [Prisoner] (Ep.1)

  Guest Role
• 
  Anastasiia Sokolova

  Varvara Massalitinova (Ep.1, 16)

  Guest Role
• 
  Kyung Ki Hyun

  [Nightclub security] (Ep. 4)

  Guest Role
• 
  Yoon Sa Bong

  [Prison gang boss] (Ep.1,16)

  Guest Role
• 
  Kim Yoon Joo

  [Neighborhood mother] (Ep. 1)

  Guest Role
• 
  Sung Nak Kyung

  [Guy in women's bathroom] (Ep.1)

  Guest Role
• 
  Jang Nam Yul

  Wang Kai [Mob boss] (Ep.2, 15-16)

  Guest Role
• 
  Jo Young Hoon

  [Il Kwang Hitech employee] (Ep.2)

  Guest Role
• 
  Eom Ji Man

  [Security guard] (Ep.2)

  Guest Role
• 
  Jung Dong Geun

  [NIS Agent] (Ep.2)

  Guest Role
• 
  Go Han Min

  [NIS Agent] (Ep.2)

  Guest Role
• 
  Lee Young Jin

  [Doctor] (Ep.5)

  Guest Role
• 
  Ahn Soo Bin

  [Ex-girlfriend of blind date] (Ep.7)

  Guest Role
• 
  Choi Yoon Bin

  [Shim Hwa Ran's subordinate] (Ep.8)

  Guest Role
• 
  Jang Seok Hyun

  [Baek Chan Mi's blind date] (Ep.7,10)

  Guest Role
• 
  Hong Suk Bin

  [Security guard] (Ep.9-10)

  Guest Role
• 
  Hong Seo Joon

  [Team leader] (Ep. 8)

  Guest Role
• 
  Nam Sung Jin

  [Hwang Mi Soon's Boss] (Ep.13)

  Guest Role
• 
  Seo Wang Seok

  [Wang Kai's subordinate] (Ep. 15-16)

  Guest Role
• 
  Kang Dong Yup

  [Prosecutor] (Ep.15)

  Guest Role
• 
  Bae Seong Il

  [Nam Bong Man's co-worker] (Ep.15)

  Guest Role
• 
  Lee Se Rang

  [Student's mother] (Ep.14)

  Guest Role
• 
  Park Min Young

  [Nam Ju Yeon's teacher] (Ep. 12)

  Guest Role
• 
  Lee Joong Yul

  [Truck driver] (Ep.13)

  Guest Role
• 
  Choi Ga In

  [Student's mother] (Ep.14)

  Guest Role
• 
  Oh Se Eun

  [Student] (Ep. 14-15)

  Guest Role
• 
  Lee Jin Ah

  [Doctor] (Ep.12-13)

  Guest Role
• 
  Jang Joo Yeon

  [Mom in elevator] (Ep.1)

  Guest Role
• 
  Sun Hak

  M (Ep.1, 6-7)

  Guest Role
• 
  Lee Yoon Sang

  [Board of director] (Ep.15)

  Guest Role
• 
  Park Ki Ryung

  [Board of director] (Ep.15)

  Guest Role
• 
  Moon Ah Ram

  [Myeong Gye Cheol's secretary] (Ep. 10,13)

  Guest Role
• 
  Jang Joon Ho

  [Board of director] (Ep.15)

  Guest Role
• 
  Kim Mi Hye

  [Flight attendant] (Ep. 5)

  Guest Role
• 
  Lee Chae Hyun Guest Role
• 
  Oh Ki Hwan

  [Woo Seok's informant] (Ep. 11)

  Guest Role
• 
  Lee Kun Goo

  [Agent]

  Guest Role
• 
  Kim Jong Ho

  [Job Interviewer] (Ep. 2)

  Guest Role
• 
  Hong Dae Sung

  [NIS Agent]

  Guest Role
• 
  Kim Kwon

  [Doctor] (Ep. 7)

  Guest Role
• 
  Kwon Ban Suk

  [Security guard] (Ep. 3)

  Guest Role
• 
  Kim Sung Yeol

  [Photographer] (Ep. 2)

  Guest Role
• 
  Lee Gyeong Jae

  [Advertising staff]

  Guest Role
• 
  Han Sa Myung

  [Restaurant deliveryman] (Ep. 4-5)

  Guest Role
• 
  Park Se Hoon

  [Michael stand-in]

  Guest Role

Unknown

• 
  Kim Hwa Young Unknown