Full cast of Through the Darkness

Kim Nam-gil

Song Ha-young

12 episodes

Kim So-jin

Yoon Tae-goo

12 episodes

Jin Sun-kyu

Kook Young-soo

12 episodes

Ryeoun

Jung Woo-joo

12 episodes

Lee Dae-yeon

Baek Jun-shik

12 episodes

Jung Soon-won

Nam Il-young

12 episodes

Kim Won-hae

Heo Gil-pyo

12 episodes

Hong Woo-jin

Oh In-tak

12 episodes

Jo Young-jin

Lee Jin-chul

12 episodes

Lee Haney

Im Moo-sik

12 episodes

Kim Hye-ok

Park Young-shin

12 episodes

Seo Dong-gab

Kim Bong-shik

12 episodes

Kong Seong-ha

Choi Yoon-ji

12 episodes

Han Jun-woo

Gu Young-chun

5 episodes

Sun Yul-woo

Detective

5 episodes

Kim Joong-hee

Nam Ki-tae

5 episodes

Jeong Man-sik

Park Dae-woong

4 episodes

Moon Dong-hyeok

Moon Tae-soo

3 episodes

Kim Hyun

Hwa-yeon's mother

3 episodes

Woo Jung-kook

Cho Hyun-gil

3 episodes

Na Chul

Woo Ho-sung

3 episodes

Oh Seung-hoon

Jo Kang-moo

2 episodes

Yoon Hye-ree

Choi Hwa-yeon

2 episodes

Oh Kyung-joo

Bang Ki-hoon

2 episodes

Oh Hee-jun

Kang Yoo-min

2 episodes

Ko Gun-han

Yang Yong-chul

2 episodes

Lee Cheon-mu

Song Ha-young (young)

2 episodes

Noh Ha-yeon

Lee Soo-hyun

2 episodes

Ki Hwan

Soo-hyun's father

2 episodes

Lee Hun-joo

Soo-hyun's mother

2 episodes

Kwon Eun-seong

Lee Ji-wook

2 episodes

Son Young-soon

Lee Chun-young

2 episodes

Kim Gyeong-min

Professor An

2 episodes

Seong No-jin

Forensics examiner

2 episodes

Choi Sol-hee

Yang Ji-sook

2 episodes

Kim Yun-seul

Cotton candy girl

1 episode

Kim Kwan-mo

Undercover cop in drag

1 episode

Choi Da-young

Nurse

1 episode

Hwang Jeong-min

'Turtle' supermarket owner

1 episode

Heo Seon-haeng

Medical examiner

1 episode

Kim Deok-ju

Hwa-yeon's landlord

1 episode

Lee Si-young

Neighborhood single mother

1 episode

Bang Jung-hyun

Detective

1 episode

Park Jin-young

Doctor

1 episode

Cheon Dong-been

Deliveryman

1 episode

Lee Ki-seop

Kang Jin-goo

1 episode

Lee Jong-yoon

Jang Deuk-hok

1 episode

Bae Seong-il

Detective

1 episode

Jung Chung-gu

Film developer

1 episode

Park Yu-mil

Lim Hyun-joo

1 episode

Lee Jae-eun

Mrs. Kim

1 episode

Jung Young-keum

Hyun-gil's landlord

1 episode

Choi Nam-wook

Convenience store owner

1 episode

Ku Sung-hwan

Hwang Dae-sun

1 episode

Seo Myung-chan

Han Seok-hoon

1 episode

Hwang In-jun

Detective

1 episode

Oh Kyu-taek

Man drinking with prosecutor

1 episode

Hong Ye-ji

Bookstore employee

1 episode

Lee Geun-hoo

Kwak Man-hyun

1 episode

Lee Jae-woo

Detective Kim

1 episode

Kim Bum-joon

Witness

1 episode

Yoo Yong

Detective

1 episode

Lee Dong-kyu

Anchorman

1 episode

Kim Joo-ah

Columbarium employee

1 episode

Choi Min-hyeok

Victim

1 episode

Han Dae-gwan

Victim's father

1 episode

Kim Nak-kyun

Detective

1 episode

Hong Eun-jeong

Manyeon bus stop woman

1 episode

Lee Ye-joo

Christmas tree girl

1 episode

Yoon Ga-i

Lee Cho-won

1 episode

Noh Eun-ha

ATM woman

1 episode

Kim Borana

Massage parlor owner

1 episode

Kim Bong-soo

Ji-sook's father

1 episode

Kim Bong-hee

Ji-sook's mother

1 episode