Mousetrap

Composer

• 
  Kim Tae Seong

Director

• 
  Kim Hong Seon

Screenwriter

• 
  Lee Jae Gon

Main Role

• 
  Ryu Jun Yeol

  Je Mun Jae | "The Rat"

  Main Role
• 
  Sul Kyung Gu

  No Ja / Kim Yeong Geun

  Main Role
• 
  Lee Kyu Hyung

  Park Sun Yong

  Main Role

Support Role

• 
  Kim Yoon Tae

  Je Geon U

  Support Role
• 
  Kim Jung Young

  Han Yeong Hui

  Support Role
• 
  Song Su Yi

  So Min Yeong [Mun Jae's college girlfriend]

  Support Role
• 
  Park Yoon Ho

  Seo Yu Min [Mun Jae's college classmate]

  Support Role
• 
  Jung Hee Tae

  Kim Han Su [Chief of the Detective Division]

  Support Role
• 
  Kim Sung Oh

  Park Seung Gyu [Ringleader of multiple illegal activities]

  Support Role
• 
  Hyun Bong Sik

  Kang Myeong Su / Kwak Sang Cheol [Gambling den's figurehead]

  Support Role
• 
  Moo Jin Sung

  Son Su Hyeon [Mun Jae's friend]

  Support Role
• 
  Lee Chan Yong

  Min Ho [Detective]

  Support Role
• 
  Hong Ki Joon

  Min Gi [Noja's subordinate]

  Support Role
• 
  Shin Chang Joo

  Byeong Jun [Seung Gyu's subordinate]

  Support Role
• 
  Kang Bin

  Byeong Ho [Seung Gyu's subordinate]

  Support Role
• 
  Lee El

  Han Ji Hye [Editor-in-chief]

  Support Role
• 
  Lee Kwan Hoon

  Dong Cheol [Detective]

  Support Role
• 
  Shin Soo Ho

  Han Chang U [Detective]

  Support Role

Guest Role

• 
  Shin Hee Chul

  Min Seok [Alumnus] (Ep. 1)

  Guest Role
• 
  Kim Sun Ik

  [Reporter] (Ep. 1)

  Guest Role
• 
  Kim Dan Yool

  [Civil servant] (Ep. 1)

  Guest Role
• 
  Song Hoon

  [Civil servant] (Ep. 1)

  Guest Role
• 
  Jeong Yu Hyun

  [Police officer] (Ep. 1)

  Guest Role
• 
  Lee Na Hyun

  [Prospective buyer] (Ep. 1)

  Guest Role
• 
  Lee Tae Hyung

  [Realtor] (Ep. 1-2)

  Guest Role
• 
  Lim Young Joon

  [Apt. security guard] (Ep. 1-2)

  Guest Role
• 
  Han Ki Jang

  Jeon Gyeong Tae [Alumnus] (Ep. 1, 3)

  Guest Role
• 
  Kim Se Yun

  [Detective] (Ep. 3)

  Guest Role
• 
  Go Yoon Bin

  [Currency exchange manager] (Ep. 3-4)

  Guest Role
• 
  Lee Jae Nam

  [Detective] (Ep. 4)

  Guest Role
• 
  Kim Do Hee

  [Police officer] (Ep. 4)

  Guest Role
• 
  Oh Kyung Min

  [Car salesman] (Ep. 4)

  Guest Role
• 
  Byeon Chang Yeol

  [Phone messenger] (Ep. 4)

  Guest Role
• 
  Han Sa Myung

  Jung Bae (Ep. 5)

  Guest Role
• 
  Kim Jung Seop

  [Hunter] (Ep. 5)

  Guest Role
• 
  Lee Joo Hyung

  [Fisherman] (Ep. 5)

  Guest Role
• 
  Lee Joo Hyung

  [Fisherman] (Ep. 5)

  Guest Role
• 
  Jung Hye Kyung

  [Restaurant owner] (Ep. 5)

  Guest Role
• 
  Kim In Soo

  [Monk] (Ep. 6)

  Guest Role
• 
  Jung Jong Yul

  [Lawyer] (Ep. 6)

  Guest Role
• 
  Jeon Hee Ryun

  [Gunshot witness] (Ep. 6)

  Guest Role
• 
  Lee Hyun

  [Vacation home owner] (Ep. 6)

  Guest Role
• 
  Go Dong Eob

  [Doctor] (Ep. 6-7)

  Guest Role
• 
  Park Jeong Min

  [Truck driver] (Ep. 7)

  Guest Role
• 
  Kim So Woon

  [Han Su's wife] (Ep. 7)

  Guest Role
• 
  Kim Hye Jung

  [Village grandma] (Ep. 7)

  Guest Role
• 
  Jung Ma Rin

  [Village grandma] (Ep. 7)

  Guest Role
• 
  Kim Hong Bu

  [Farmer] (Ep. 7-8)

  Guest Role
• 
  Kim Woo Hyun

  [School staff] (Ep. 8)

  Guest Role
• 
  Lee Dong Chan

  [Pharmacist] (Ep. 10)

  Guest Role
• 
  Kim Sung Yong

  [Mediation judge] (Ep. 10)

  Guest Role
• 
  Lee Sang Woon

  Jae Cheol

  Guest Role
• 
  Kim Han Gyeol

  Park Sun Yeong [Child]

  Guest Role
• 
  Lee Chae Yu

  Son Da Eun [Su Hyeon's daughter]

  Guest Role
• 
  Shin Moon Sung

  Han Hui Su [Mun Jae's maternal uncle]

  Guest Role
• 
  Park Jong Hwan

  [Hunter]

  Guest Role
• 
  Kang Myoung Soo

  [Postman]

  Guest Role
• 
  Moon Do Yun

  [Detective]

  Guest Role
• 
  Park Joon Sung

  [Detective]

  Guest Role
• 
  Park Si Yun

  [Detective]

  Guest Role
• 
  Lee Kun Goo

  [Detective]

  Guest Role
• 
  Lee Myung Hee

  [Yakult lady]

  Guest Role