Pemeran Through the Darkness

Kim Nam Gil (김남길)

as Song Ha Yeong

Pemeran Utama

Jin Sun Kyu (진선규)

as Kook Yeong Su

Pemeran Utama

Kim So Jin

as Yun Tae Gu

Pemeran Utama

Ryeo Un (려운)

as Jung U Ju

Pemeran Pembantu

Lee Dae Yeon

as Baek Jun Sik

Pemeran Pembantu

Kim Won Hae

as Heo Gil Pyo

Pemeran Pembantu

Jung Soon Won

as Nam Il Yeong

Pemeran Pembantu

Ha Do Kwon

as Sin Gi Ho

Pemeran Pembantu

Gong Sung Ha

as Choi Yun Ji

Pemeran Pembantu

Lee Ha Nui

as Im Mu Sik

Pemeran Pembantu

Kim Hye Ok

as Park Yeong Sin

Pemeran Pembantu

Jo Yeong Jin

as Lee Jin Cheol

Pemeran Pembantu

Hong Woo Jin

as O In Tak

Pemeran Pembantu

Seo Dong Gap

as Kim Bong Sik

Pemeran Pembantu

Kim Yun Seul

as [Cotton candy girl] (Ep. 1)

Bintang Tamu

Kim Gwan Mo

as [Undercover cop in drag] (Ep. 1)

Bintang Tamu

Choi Da Yeong

as [Nurse] (Ep. 1)

Bintang Tamu

Heo Seon Haeng

as [Medical examiner] (Ep. 1)

Bintang Tamu

Lee Si Young

as [Neighborhood single mother] (Ep. 1)

Bintang Tamu

Park Jin Yeong

as [Doctor] (Ep. 1)

Bintang Tamu

Yoon Hye Ree

as Choi Hwa Yeon

Bintang Tamu

Oh Kyung Joo

as Bang Gi Hun

Bintang Tamu

Oh Hee Joon

as Kang Gyu Min

Bintang Tamu

Go Geon Han

as Yang Yong Cheol

Bintang Tamu

Oh Seung Hoon

as Cho Gang Mu

Bintang Tamu

Lee Cheon Mu

as Song Ha Yeong [Young] (Ep. 1, 11)

Bintang Tamu

Kim Hyun

as Kim Jeong Ja

Bintang Tamu

Cheon Dong Bin

as [Deliveryman] (Ep. 2)

Bintang Tamu

No Ha Yeon

as Lee Su Hyeon

Bintang Tamu

Lee Ki Sub

as Kang Jin Gu

Bintang Tamu

Lee Jong Yun

as Jang Deuk Ho

Bintang Tamu

Bae Seong Il

as [Detective] (Ep. 3)

Bintang Tamu

Jung Chung Gu

as [Film developer] (Ep. 3)

Bintang Tamu

Park Yoo Mil

as Lim Hyron Ju (Ep. 3)

Bintang Tamu

Lee Jae Eun

as Mrs. Kim

Bintang Tamu

Kwon Eun Seong

as Lee Ji Uk

Bintang Tamu

Son Young Soon

as Lee Chun Yeong

Bintang Tamu

Woo Jung Kook

as Cho Hyeon Gil

Bintang Tamu

Choi Nam Uk

as [Convenience store owner] (Ep. 4)

Bintang Tamu

Han Joon Woo

as Koo Yeong Chun

Bintang Tamu

Gu Sung Hwan

as Hwang Dae Seon

Bintang Tamu

Seo Myung Chan

as Han Seok Hun

Bintang Tamu

Hwang In Jun

as [Detective] (Ep. 5)

Bintang Tamu

O Gyu Taek

as [Man drinking with prosecutor] (Ep. 5)

Bintang Tamu

Seon Yul U

as [Detective] (Ep. 5-7, 9-10)

Bintang Tamu

Hong Ye Ji

as [Bookstore employee] (Ep. 6)

Bintang Tamu

Kim Joong Hee

as Nam Gi Tae

Bintang Tamu

Lee Geun Hoo

as Kwak Man Hyeon

Bintang Tamu

Lee Jae U

as Detective Kim

Bintang Tamu

Kim Beom Jun

as [Witness] (Ep. 7)

Bintang Tamu

Yoo Yong

as [Detective] (Ep. 7)

Bintang Tamu

Lee Dong Gyu (이동규)

as [Anchorman] (Ep. 7)

Bintang Tamu

Kim Gyeong Min

as Professor An

Bintang Tamu

Seong No Jin

as [Forensics examiner] (Ep. 7, 9)

Bintang Tamu

Kim Joo Ah

as [Columbarium employee] (Ep. 9)

Bintang Tamu

Choi Min Hyeok

as [Victim] (Ep. 9)

Bintang Tamu

Kim Hyeon Tae

as [Witness] (Ep. 9)

Bintang Tamu

Jang Eun Seo

as [Woman walking home] (Ep. 9)

Bintang Tamu

Kim Nak Gyun

as [Detective] (Ep. 10)

Bintang Tamu

Choi Sol Hui

as Yang Ji Suk

Bintang Tamu

Na Chul

as Woo Ho Seong

Bintang Tamu

Hong Eun Jeong

as [Manyeon bus stop woman] (Ep. 11)

Bintang Tamu

Lee Ye Ju

as [Christmas Tree girl] (Ep. 11)

Bintang Tamu

Yoon Ga Yi

as Lee Cho Won

Bintang Tamu

No Eun Ha

as [ATM woman] (Ep. 11)

Bintang Tamu

Bo Ra Na

as [Massage parlor owner] (Ep. 12)

Bintang Tamu

Sin Dong Eun

as [Reporter]

Bintang Tamu

Jeon Jeong Il

as [PR manager]

Bintang Tamu

Kim Han Geul

Asisten Sutradara

Lee Su Min

Asisten Sutradara

Kim Ju Yeong

Asisten Sutradara

Gaemi

Composer

Park Bo Ram

Sutradara

Kim Jae Hong

Sutradara

Cho Seong Hun

Executive Producer

Han Jeong Hwan

Producer

Seol I Na

Screenwriter

Bang Jeong Hyeon

as [Violent crimes detective] (Ep. 1)

Cameo

Hwang Jung Min

as ["Turtle" supermarket owner] (Ep. 1-2)

Cameo

Moon Dong Hyeok

as Moon Tae Su

Cameo

Jung Man Sik

as Park Dae Ung

Cameo