The Good Detective

Son Hyun-joo

Kang Do-chang

Jang Seung-jo

Oh Ji-hyeok

Cha Rae-hyung

Kwon Jae-hong

Jung Soon-won

Ji Man-gu

Kim Ji-hoon

Byeon Ji-woong

Kim Myeong-jun

Sim Dong-uk

Son Jong-hak

Moon Sang-beom

Jo Hee-bong

Woo Bong-sik

Baek Eun-hye

Kang Eun-hee

Lee Ha-eun

Lee Eun-hye

Lee Elijah

Jin Seo-kyeong

Kim Hyo-jin

Cheon Na-na

Jung Moon-sung

Woo Tae-ho

Oh Jung-se

Oh Jong-tae

Ji Seung-hyun

Yoo Jeong-seok

Song Young-chang

Cheon Seong-dae

Shin Dong-mi

Yoon Sang-mi

Choi Dae-hoon

Cheon Sang-u

Yang Hyun-min

Nam Guk-hyeon

Park Won-sang

Choi Yong-geun

Lee Joong-ok

Jang Ki-jin

Son Byung-ho

Kim Gi-tae

Cho Jae-ryong

Cho Seong-dae

Cho Seung-yeon

Yoo Jeong-ryeol

Yoon Dae-yeul

Choi Woo-jin

Lee Sang-un

Song Gwang Hee

Park Jeong-min

Go Gyung Ho

김려은

Yoon Ji Sun

Shin Jae-hoon

'Junghan Daily News' reporter

Park Keun-hyong

Jung In-Beom

홍금비

Moon Bo-Kyung

Kim In-kwon

Lee Sung-Gon

Ahn Ha-young

Jung Hee-Joo

Baek Sang-hee

Kim Min-Ji

Cha Soon-bae

Jung Chi-Soo

Shim Jae-hyun

Park Sang-Hoon

Hong Sang-pyo

Jo Jin-Chul

Yang Hee-won

Jae Woong [Eun Hee's son]

Cho Tae-kwan

Michael Cha

Ko Chang-seok

Cha Moon-Ho

Jo Jae-yun

Lee Dae-cheol

Lee Hyun-wook

Park Gun-ho

An Si-ha

Jung Yoo Seon [Jin Soo's wife]

Cheon Young-min

Jang Yoo Na

Hwang Tae-kwang

Jang Jin Soo

Park Ji-hwan

Kim Sang-soo

Kim Seung-tae

Minister of Justice

Shin Jae-whi

Park Hong Doo

Lee Seung-joon

Lee Han Joo [Prison guard]

Lee Seung-hun

So Jae Sub [Attorney]

Lee Do-guk

Jung San Il [Prosecutor]

Hwang Jae-yeol

Ki Dong Su

Heo Woong

Shin Geun Ho

Son Seung-hoon

Video forensics

Oh Jung-hwan

Go Joon Sup

Jeong Ji-ho

Jung Ki Moon [Reporter]

Baek In-kwon

Prisoner

Yong-Jin

Cha Do Hyun / Police officer

Kwon Oh-jin

Park Jun Sung

Jang Woo-yeon

Yoon Ji Sun's Roommate

Cho Joon

Jo Byung Gil

Kim Kyu-baek

Kim Hyung Bok

Lee Joo-sil

Hyung Bok's mother

Choi Kyung-min

Park Seon Mi

Kim Bong-soo

In Beom's customer

Lee Yoon-jae

Presidential secretary

Bang Eun-jeong

Sung Joo Ri

Choi Won

Bus company employee

Yoo Mi-Sun

Ye Rim

Yoon Hyun-gil

Cheon Na Na's mother

Park Ye-ni

Laura Caine

Lee Suk

Ki Dong Jae

Lee Hyun-kyun

Choi Sang Ho [Security personnel]

Myung Jae-hwan

Vlogger

Baek Soo-jang

Sim Dong Il

Jang Myoung-un

Security personnel

Lim Seung-beom

NFS examiner

Kim Si-eun

Lee Eun Hye [Young]

Yoon Bok-sung

Judge

Shin Jung-yoon

Reporter Seo

Shin Hee-gook

Cashier

Baek Jong-hwan

Distribution center employee

Lee Yu-jin

Sung Dae's secretary

Kim Seung-Han

Oh Ji Hyuk [Young]

Kim Seon-kyeong

Ji Hyuk's mother

Woo Kang-min

Joo Dong-Pal

Song Yo-sep

Park Dong Chul

Kim Byeong-soon

Judge

Kang Hak-soo

Judiciary committee

Kim Tae-hoon

Park Joon Young

Oh Kyu-taek

Gawol church pastor

Park Kyung-geun

Jin Sung Hwan

Lee Kyu-ho

Gang boss

Woo Young-nam

Police officer

Lee Young-sil

Gook Hyun's relative

Yoo Byung-sun

Wrecking yard employee

Park Byung-wook

Apt. security guard

Dok Ko-kwang

Hong Doo's group

Kang Ji-hoon

TV reporter

Han Myung-chul

Victim's family

남희수

Lee Se Jin [Dispatcher]

Ko Dong-hyoung

Violent Crimes Team 1

Jang Yoon-woo

Park Seong-Ock

Lee Woo-shin

Judge

Lee Eun-ju

OB-GYN

Park Chul-Min

Anchorman

Lee Dong-soo

Nightclub manager

Kim Hyun Tae

Ji Hyuk's informant

Koo Min-hyuk

Motorcycle shop owner

Song Chang-gyu

Chinese restaurant owner

Ji Seong-geun

Farmer

김종호

Presidential secretary's father-in-law

Kim Hyun-chang

Detective

Jang Ui-don

Bus driver

Lee Dong-kyu

Anchorman

Lee Yeon-ju

Translator

Cheon Dong-been

Gang member

Park Hyo-joo

Hye Ok

Noh Ha-yeon

Laura Caine [Young]

Kim Jang-hwan

Reporter

Kang Jong-sung

Hye Ok's father

Lee Joong-hyun

Wedding criminal

Park Wan-kyu

Sung Gon's father

Ahn Soo-ho

News program PD

Ok Il-jae

News program staff

Choi Nam-wook

TV station executive

Lee Ho-cheol

Goo Jae Choon

Park Ji-ho

Employee

이창섭

Doctor

Park Jong-moo

Doctor

Jang Yong-hee

ER staff

Kim Dae-gook

Police internal investigator

Park Joon-sang

News program host

Lee Jin-Seung

CCTV room staff

Yang Ha-yoon

TV reporter

Kim Ji-Yoon

Reporter

Lee Ji-young

Reporter

Seo Myung-chan

Judge

Han Myeong-hwan

Arrested man

Kim Byung-cheol

Con man

Lee Min-Sik

Doctor

Gu Yun-hoe

Doctor

Lee Moo-nyoung

Chinese restaurant owner

Ha Young-jin

Prosecutor

Kim Dae-geun

Goo Jae Choon's subordinate

Shin Yoon-jung

Ki Dong Jae's girlfriend

Lee Na-ra

Do Chang's Date (Eps 16)