Crime Puzzle

Director

• 
  Go Jae Hyun

Original Creator

• 
  Meen

Screenwriter

• 
  Choi Jong Gil

Main Role

• 
  Yoon Kye Sang

  Han Seung Min

  Main Role
• 
  Go Ah Sung

  Yoo Hee

  Main Role

Support Role

• 
  Yoon Kyung Ho

  Kim Pan Ho

  Support Role
• 
  Song Sun Mi

  Park Jung Ha [Ilsim Foundation]

  Support Role
• 
  Kwon Soo Hyun

  Cha Seung Jae [Anlim Prosecutor]

  Support Role
• 
  Woo Hyun

  Jo Seong Soo

  Support Role
• 
  Woo Kang Min

  Bae Sung Pil [Anlim Police]

  Support Role
• 
  Seo Ji Hye

  Park Soo Bin [Anlim Police]

  Support Role
• 
  Kim Roi Ha

  Kim Gwan Ho [Anlim prison warden]

  Support Role
• 
  Yoon Jong Seok

  Kim Min Jae

  Support Role
• 
  Oh Cho Hee

  Seo Mi Jin

  Support Role
• 
  Park Eun Byul

  Lee Min Ji

  Support Role
• 
  Jin So Yeon

  Han Yeon Joo [Attorney]

  Support Role
• 
  Jo Duk Hyun

  Mayor Yoo Hong Min

  Support Role
• 
  Jeon Jin Oh

  Yoo Cheol Hee

  Support Role
• 
  Moon Won Ju

  Han Moon Ho

  Support Role
• 
  Kang Bo Ra

  Baek Soo Jin

  Support Role
• 
  Park Yong

  [Head of Anlim Prosecutors]

  Support Role
• 
  Lee Hyun Kul

  Yoo Hong Soo

  Support Role
• 
  Park Geon Rak

  Park Pil Sung [Prison guard]

  Support Role
• 
  Kim Nak Gyun

  Kim Nak Gyoon [Prison guard]

  Support Role
• 
  Jeon Moo Song

  Park Hyun

  Support Role
• 
  Kim Heung Soo

  Kang Dae Hun

  Support Role

Guest Role

• 
  Kang Min Tae

  [Cleanup crew]

  Guest Role
• 
  Park Gi Seon

  [Apartment security guard] (Ep. 5)

  Guest Role
• 
  Park No Kyeong

  Jo Sung Soo [Young] (Ep. 5)

  Guest Role
• 
  Park Jong Bum

  [Guard tower repairman]

  Guest Role
• 
  Seo In Geol

  Hong Dae Bum

  Guest Role
• 
  Kim Won Joong

  [Prisoner]

  Guest Role
• 
  Seon Yul U

  [Prisoner]

  Guest Role
• 
  Jung Dong Hwan

  Chairman Yoo Hyun Il

  Guest Role
• 
  Shin Min Soo

  Shin Min Soo [Secretary

  Guest Role
• 
  Kim Jung Soo

  Kim Jung Soo (Ep. 2)

  Guest Role
• 
  Go Han Min

  Park Dong Woo (Ep. 2-3)

  Guest Role
• 
  Yoon Jong Goo

  [Scrapyard employee] (Ep. 3)

  Guest Role
• 
  Hae Geum

  Oh Hye Geum

  Guest Role
• 
  Chae Song Hwa

  [Happiness Apt. resident] (Ep. 5)

  Guest Role
• 
  Jang Se Won

  Park Jong Ho (Ep. 6)

  Guest Role
• 
  Lee Seung Bi

  [Se Jin's mother] (Ep. 7)

  Guest Role
• 
  Hong Suk Youn

  [Se Jin's mother] (Ep. 7)

  Guest Role
• 
  Jeon Heon Tae

  Director Oh (Ep. 6)

  Guest Role
• 
  Baek Jae Jin

  [Farmer] (Ep. 6)

  Guest Role
• 
  Lee Yong Nyeo

  [Gunsan resident] (Ep. 7)

  Guest Role
• 
  Lee Hyo Bi

  Yoo Hee [Child]

  Guest Role
• 
  Lee Chae Min

  [Yoo Hee's mother]

  Guest Role
• 
  Kim Song Il

  [Medical examiner] (Ep. 1-2)

  Guest Role
• 
  Lee Woo Shin

  [Judge] (Ep. 1)

  Guest Role
• 
  Jin Shi Won

  [Doctor] (Ep .5)

  Guest Role
• 
  Yoon Tae Hee

  [Sung Soo's mother]

  Guest Role
• 
  Lee Si Young

  Min Jae's sister (Ep. 7-8)

  Guest Role
• 
  Park Sang Hyun

  [Reporter] (Ep. 8)

  Guest Role
• 
  Kwak Na Yeon

  [Warden Kim's wife] (Ep. 8-9)

  Guest Role
• 
  Yun Ki Chang

  [Apt. security guard] (Ep. 9)

  Guest Role
• 
  Choi Ri Ho

  [Apt. security guard] (Ep. 9)

  Guest Role
• 
  Kang Moon Kyung

  [Judge] (Ep. 10)

  Guest Role
• 
  Hwang Dong Ha

  [Crime scene investigator] (Ep. 9)

  Guest Role
• 
  Shin Ha Rang

  Lee Se Jin (Ep. 6)

  Guest Role
• 
  Kim Sung Joon

  [Prosecutor] (Ep. 2)

  Guest Role
• 
  Kim Hye Ran

  [Reporter] (Ep. 2)

  Guest Role

Unknown

• 
  Yoon Jong Won Unknown
• 
  Lee Pu Reum Unknown