# Watcher (TV series)

Watcher (Korean: 왓쳐; stylized as WATCHER) is a 2019 South Korean television series starring Han Suk-kyu, Seo Kang-joon, and Kim Hyun-joo. It aired on OCN every Saturday and Sunday at 22:20 (KST) from July 6 to August 25, 2019.

## Synopsis

A brutal murder committed 15 years ago turned three lives upside down. A decade and a half later, the trio – brought together by fate – goes on the hunt for answers.

## Cast
### Main

* Han Suk-kyu as Do Chi-kwang
    A detective who has caught many criminals during his career. He hates corruption within the police and becomes leader of the internal affairs investigation team to find the truth about a particular incident.
* Seo Kang-joon as Kim Yeong-goon
** Moon Woo-jin as young Kim Yeong-goon
    A police officer who joins Do Chi-kwang's team after they become involved in the same incident.
* Kim Hyun-joo as Han Tae-joo
    A former prosecutor turned lawyer after she got involved too deep while working on a case and almost died. She starts working with Do Chi-kwang and Kim Yeong Goon.

### Supporting

* Heo Sung-tae as Jang Hae-ryong
    Head of the Police Investigation Department, he is often in conflict with Do Chi-kwang.
* Park Joo-hee as Jo Soo-yeon
    With a degree in Chemistry, she became part of the Scientific Investigation Team. After she makes a mistake, however, she decides to quit to join the internal affairs investigation team.
* Joo Jin-mo as Park Jin-woo
    Deputy Commissioner of police force.
* Kim Soo-jin as Yeom Dong-sook
    Commissioner of police force.
* Lee Joong-ok as Jae-shik's friend
* Ahn Gil-kang as Kim Jae-myung, Kim Yeong-goon's father
* Lee Jae-yoon as Kim Kang-wook
* Jung Do-won as Hong Jae-sik
* Kim Dae-gun as Detective Chan-hee
* Won Gun-su as Detective 2
* Park Hoon as Yoon Ji-hoon, Han Tae-joo's ex-husband
* Jung Min-sung as Son Byeong-gil
* Kim Dong-hyun as Kim Sang-joon
* Chae Dong-hyun as Lee Dong-yoon
* Yang Ye-na as Yoon-ji
* Kim Yong-ji as Lee Hyo-jung
* Park Sung-il as Department Head Kim
* Han Sang-hoon as Coroner
* Shin Hyun-jong as Min Young-ki
* Jung Soon-won as Jung Han-wook
* Yu Ha-jun as Oh Sang-do
* Park Ji-hoon as Park Si-young
* Lee Seung-chul as Chairman Jung Seok-tae
* Shin Mun-sung as Lee Joong-ho (EP.10)
* Lee Yoon-sun as Jang Ji-yoon (EP.14)
ADDITIONAL CAST
* Woo Jung-won as Park Ji-hyun
* Lee Nam-hee as Shin Woo-sung
* Jeon Suk-chan as Kim Jo-han
* Park Mi-hyun as Jo Hyun-kyung
* Kim Dan-woo as Areum (Son Byeong-gil's daughter)
* Lee Eol as Jang Hyun-soo
* Yoo Jung-ho as Park Jung-geum
* Kim Geon-u as Kim Cha-hoon
* Kim Ju-yeon as Baek Song-yi
* Han Seung-soo as Regional Investigation unit detective
* Jang Eui-don as Patient
* Yu Seung-il as Driving violator (ep.1)
* Park Yong

## Production

The series is directed by Ahn Gil-ho (Stranger, Memories of the Alhambra).

## Ratings

| Season | Season | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Episode number | Average |
| Season | Season | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | Average |
| | 1 | 0.814 | 1.251 | 0.873 | 1.113 | 0.875 | 1.306 | 0.915 | 1.194 | 0.829 | 1.204 | 0.866 | 1.462 | 0.994 | 1.286 | 1.197 | 1.602 | 1.111 |