Pemeran Inspector Koo

Lee Young Ae (이영애)

as Koo Kyung Yi

Pemeran Utama

Kim Hye Joon (김혜준)

as Song Yi Kyung

Pemeran Utama

Kim Hae Sook

as Chief Yong Sook

Pemeran Utama

Kwak Sun Young (곽선영)

as Na Je Hee

Pemeran Utama

Baek Sung Chul

as Santa

Pemeran Utama

Jo Hyun Chul

as Oh Kyung Soo

Pemeran Utama

Bae Hae Seon

as Jung Jeong Yeon

Pemeran Pembantu

Choi Dae Chul

as Heo Seong Tae

Pemeran Pembantu

Park Ji Bin

as Heo Hyun Tae

Pemeran Pembantu

Jung Suk Yong

as Director Kim

Pemeran Pembantu

Park Kang Sub

as Dae Ho

Pemeran Pembantu

Lee Han Ju

as Lee Yeong Ju

Pemeran Pembantu

Lee Hong Nae (이홍내)

as Ahn Keon Wook [K's helper]

Pemeran Pembantu

Choi Young Joon

as Jang Seong Woo [Kyung Yi's husband]

Pemeran Pembantu

Jung Jong Joon

as Na Jong Jun [Na Je Hee's Father]

Pemeran Pembantu

Choi So Yool

as Na Na [Na Je Hee's Daughter]

Pemeran Pembantu

Lee Jin Seung

as [JBS reporter] (Ep. 1)

Bintang Tamu

Lee So Geum

as [Food deliveryman] (Ep. 1)

Bintang Tamu

Jeon Seok Chan

as [Detective] (Ep. 1-2)

Bintang Tamu

Lee Dong Wook

as [Man fishing] (Ep. 1-2)

Bintang Tamu

Ahn Ryeo Jin

as [Escort] (Ep. 1-2)

Bintang Tamu

An Tae Rin

as Kim Seon Mi (Ep. 1-2, 4)

Bintang Tamu

Park Ye Young

as Yoon Jae Young (Ep. 1-2, 4)

Bintang Tamu

Kim Oh Bok

as Kim Won Shik [Inspection Team A Member] (Ep. 1-2, 6)

Bintang Tamu

Kang Hak Soo

as [Janitor] (Ep. 1, 5-6)

Bintang Tamu

Kim Kang Hyun

as Kim Min Kyu (Ep. 1-2, 6, 10)

Bintang Tamu

Park Yong

as [Client with back pain] (Ep. 2)

Bintang Tamu

Jang Jae Ha

as [Hansel] (Ep. 2)

Bintang Tamu

Lim Soo Jung

as Gretel (Ep. 2)

Bintang Tamu

Kim Ha Eon

as [Boy] (Ep. 2)

Bintang Tamu

Choi Hee Jin

as Son Ji Yu [Psychiatrist] (Ep. 2, 5)

Bintang Tamu

Park Jeong Min

as [Apartment security guard] (Ep. 2, 9)

Bintang Tamu

Shin Yoon Seop

as Park Kyu Il (Ep. 3)

Bintang Tamu

Choi Ha Yoon

as Yoon Mi Ae (Ep. 3)

Bintang Tamu

Kim Hong Kyo

as [Red sneakers guy] (Ep. 3)

Bintang Tamu

Lee Joong Ok

as [Medical examiner] (Ep. 3)

Bintang Tamu

Ku Dong Hoon

as [Medical examiner] (Ep. 3)

Bintang Tamu

Seo Jung Bin

as [Gas station customer] (Ep. 3)

Bintang Tamu

Do Mi Yeon

as [Used camera buyer] (Ep. 3)

Bintang Tamu

Lee Jeong Chan

as (Ep. 3)

Bintang Tamu

Jo Si Yeon

as Su Yeon (Ep. 4)

Bintang Tamu

Park Noh Shik

as [Bird guy] (Ep. 4)

Bintang Tamu

Kim Kwang Suk

as [Detective] (Ep. 4)

Bintang Tamu

Han Seung Yoon

as [Policeman] (Ep. 4)

Bintang Tamu

Jang Sung Kyu

as [Policeman] (Ep. 4)

Bintang Tamu

Min Eung Shik

as [Doll expert] (Ep. 4)

Bintang Tamu

Noh Hee Joong

as [Security guard] (Ep. 4)

Bintang Tamu

Joo Boo Jin

as [Subway passenger] (Ep. 4)

Bintang Tamu

Kim Bong Su

as [Senior citizen playing go] (Ep. 4-5)

Bintang Tamu

Kim Soo Ro

as Ko Dam (Ep. 4, 6-7)

Bintang Tamu

Jeong Seo A

as Song Yi Kyung [Child] (Ep. 5)

Bintang Tamu

Sung Hyun Mi

as [Cleaning lady] (Ep. 5)

Bintang Tamu

Chu Jung Hun

as [ATV rental employee] (Ep. 5)

Bintang Tamu

Won Geun Hee

as [Monk] (Ep. 5, 10)

Bintang Tamu

Jun Joon Woo

as [Police officer] (Ep. 6)

Bintang Tamu

Park Sun Young

as [KD Peace Lab employee] (Ep. 6)

Bintang Tamu

Kam Rain

as [KD Peace Lab employee] (Ep. 6)

Bintang Tamu

Gi Hwan

as [KD Peace Lab employee] (Ep. 6)

Bintang Tamu

Kang Gu Ha

as [KD Peace Lab employee] (Ep. 6)

Bintang Tamu

Ahn Shin Woo

as [Security team captain] (Ep. 7)

Bintang Tamu

Lee Chae Hyun

as [Hospital boy] (Ep. 7)

Bintang Tamu

Park Byung Wook

as [Bomb parcel supplier] (Ep. 7)

Bintang Tamu

Choi Sol Hui

as [Drunk diner] (Ep. 8)

Bintang Tamu

Min Jae

as [Hotel employee] (Ep. 8)

Bintang Tamu

Jung Mi Kyung

as [Restaurant owner] (Ep. 8)

Bintang Tamu

Park Mu Yeom

as [Photographer] (Ep. 9)

Bintang Tamu

Jo Jae Ryong

as Park Du Mok (Ep. 9)

Bintang Tamu

Jo Sung Joon

as Lee Jun Hyun (Ep. 9-10)

Bintang Tamu

Kim Ki Cheon

as [Caretaker] (Ep. 9-10)

Bintang Tamu

Seo Dong Won

as Kwak [Reporter] (Ep. 9-12)

Bintang Tamu

Park Joo Ha

as [Railway platform girl] (Ep. 10)

Bintang Tamu

Nam Dong Ha

as [Sound engineering expert] (Ep. 11)

Bintang Tamu

Kim Mi Ra

as Ms. Won (Ep. 11)

Bintang Tamu

Han Ki Jang

as [Temple guard] (Ep. 11)

Bintang Tamu

Yeon Je Hun

as [Press conference staff] (Ep. 11)

Bintang Tamu

Kang Chung Hun

as [JBS anchorman] (Ep. 11)

Bintang Tamu

Son Dong Soo

as [News program panelist] (Ep. 11)

Bintang Tamu

Lee Yoon Sang

as Minister Kim (Ep. 11-12)

Bintang Tamu

Bae Hyun Kyung

as Kim Hwan Hui [Prosecutor] (Ep. 11-12)

Bintang Tamu

Han Yeo Wool

as [Baby murderer] (Ep. 11-12)

Bintang Tamu

Yong Jin

as [Briquette murderer] (Ep. 11-12)

Bintang Tamu

Oh Se Il

as [Blackmailed person] (Ep. 11-12)

Bintang Tamu

Kim Sung Gon

as [Blackmailed person] (Ep. 11-12)

Bintang Tamu

Park Jin Sung

as [Blackmailed person] (Ep. 11-12)

Bintang Tamu

Lee Yu Ju

as [Agent]

Bintang Tamu

Lim Jin Woong

as Jin Mo (Ep. 2)

Bintang Tamu

Lee Eui Ryung

as [Deliveryman] (Ep. 3)

Bintang Tamu

Kang Ro Chae

as [Blackmailed person] (Ep. 11-12)

Bintang Tamu

Kim Joon Hee

as [Detective] (Ep. 12)

Bintang Tamu

Jeon Yeo Jin

as [Prosecutor] (Ep. 12)

Bintang Tamu

Kang Seo Kyung

as Han Gyeol

Bintang Tamu

Choi Young In

as [Mountainside restaurant worker]

Bintang Tamu

Jeon Jeong Il

as [Cleaner]

Bintang Tamu

Bae Myung Jin

as ['NT Life Insurance' Team A member] (Ep. 1)

Bintang Tamu

Yoo Pil Ran

as ['NT Life Insurance' manager] (Ep. 3)

Bintang Tamu

Cho Yi Hyun (조이현)

as [Bubble's event organizer] (Ep. 3)

Bintang Tamu

Ha Seung Yeon

as ['Sunshine' dormitory staff] (Ep. 3)

Bintang Tamu

Song Hoon

as ['MEK Security' employee] (Ep. 3, 9)

Bintang Tamu

Yoon Boo Jin

as [Jung Yeon's co-worker] (Ep. 4)

Bintang Tamu

Jeong Seo Yeon

as [Jeong Yeon's co-worker] (Ep. 4)

Bintang Tamu

Park Ye Ni

as [Yi Kyung's Mother] (Ep. 5)

Bintang Tamu

Lee Hyun Jin

as [Yi Kyung's Father] (Ep. 5)

Bintang Tamu

Cha Ye Jun

as [Woo Yeon's friend] (Ep. 5)

Bintang Tamu

Jang Jae Kwon

as [Heo Seong Tae's campaign staff] (Ep. 8)

Bintang Tamu

Jeong Yoon Hee

as [Na Je Hee's colleague] (Ep. 8)

Bintang Tamu

Lee Jae Eun

as [Keon Wook's neighbor] (Ep. 9-10)

Bintang Tamu

Kim Seo Jung

as [Heo Hyeon Tae's lover] (Ep. 9-11)

Bintang Tamu

Yoo Young Bok

as [Jong Jun's friend] (Ep. 11)

Bintang Tamu

Park Joo Won

as [Song Yi Kyung's high school friend]

Bintang Tamu

Go Jin Myung

as [Yi Kyung's neighbor] (Ep. 5)

Bintang Tamu

Eom Ji Man

as [Prosecutors' office staff] (Ep. 12)

Bintang Tamu

Kim Tae Seong

Composer

Lee Jung Heum

Sutradara

Shin Min Kyung

Editor

Sung Cho Yi

Screenwriter