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Title: 왓쳐 / Watcher
Genre: Thriller
Episodes: 16
Broadcast network: OCN
Broadcast period: 2019-July-06 to 2019-Aug-25
Air time: Saturday and Sunday at 22:20


This is a drama about 2 men and 1 women who have fallen out of life due to tragic events become police corruption investigation teams and discover the realities of power.

Do Chi Kwang (Han Suk Kyu) is an elite detective. He is thoughtful and smart. He is also proud of his record of catching criminals. After going through a series of cases, he realizes the importance of work done by the police on corruption. He then becomes the chief of the internal affairs investigation team.

Kim Young Koon (Seo Kang Joon) is a police officer and member of the mobile patrol team. He acts cold to other people, but he is actually tender with a warm personality. He does not associate with other people. By accident, he happens to meet Do Chi Kwang. Do Chi Kwang got involve in a the tragic affair, which Kim Young Koon tries to forget. To find the truth behind that case, he joins the internal affairs investigation team.

Han Tae Joo (Kim Hyun Joo) is a popular lawyer. In her past, she worked as a prosecutor. She became entangled in a case unexpectedly and survived even though her life was in grave danger. She then quit her job as a prosecutor and became a lawyer. She meets Do Chi Kwang and Kim Young Koon and joins their internal affairs team.


Main Cast

Han Suk Kyu as Do Chi Kwang
Kim Hyun Joo as Han Tae Joo
Seo Kang Joon as Kim Young Koon
Moon Woo Jin as Young Goon (child)

Seyang Police Department

Heo Sung Tae as Jang Hae Ryong
Park Joo Hee as Jo Soo Yeon
Joo Jin Mo as Park Jin Woo
Kim Soo Jin as Yeom Dong Sook
Ahn Kil Kang as Kim Jae Myung


Lee Jae Yoon as Kim Kang Wook (ep 1-2)
Yang Ye Na (양예나) as Jang Hae Ryong’s daughter
Jung Do Won as Hong Jae Sik
Woo Jung Won as Park Ji Hyun
Kim Dong Hyun
Kim Dae Gun as Detective Chan Hee


Jung Min Sung as Son Byung Gil (ep 1-2)
Kim Dan Woo as Ah Reum (ep 1-2, Son Byung Gil’s daughter)
Kim Gun Woo as Kim Cha Hoon (ep 1-2)
Lee Nam Hee as Shin Oh Sung (ep 3-4)
Kim Yong Ji as Lee Hyo Jung (ep 3-4)
Park Sung Il as chief Kim (ep 3-4)
Chae Dong Hyun as Lee Dong Yoon (ep 3-4)
Jung Soon Won as Jung Han Wook (ep 5-6)
Yoo Ha Joon as Oh Sang Do (ep 5-6)
Park Ji Hoon as Park Shi Young (ep 5-6)
Lee Seung Chul as Chairman Jung Seok Tae (ep 5-6, Chairman of Mooil Group)
Park Hoon as Yoon Ji Hoon (Han Tae Joo’s ex-husband)

Production Credits

Production Company: Studio Dragon
Director: Ahn Gil Ho
Screenwriter: Han Sang Woon

Episode Ratings

Date Episode AGB TNmS
2019-07-06 1 2.993 -
2019-07-07 2 4.493 -
2019-07-13 3 3.665 -
2019-07-14 4 4.549 -
2019-07-20 5 3.646 -
2019-07-21 6 5.405 -
2019-07-27 7 3.738 -
2019-07-28 8 5.066 -
2019-08-03 9 3.348 -
2019-08-04 10 5.076 -
2019-08-10 11 3.477 -
2019-08-11 12 6.094 -
2019-08-17 13 4.156 -
2019-08-18 14 5.520 -
2019-08-24 15 4.960 -
2019-08-25 16 6.585 -

Sources: TNmS Media Korea & AGB Nielsen Korea (Nationwide)

*** Different between TNmS Media Korea & AGB Nielson – Here

*** Note: This drama is aired on Pay-TV channel which has fewer viewers than Free-TV channels. So, please don’t be surprised with the low rating. ***


Main Character

Related Photo

(Other Photo from Official Site)

Official Site

Official Poster

Official Trailer
Trailer I
Trailer II
Trailer III
Trailer IV
Trailer V
Trailer VI
Trailer VII

Watch Online in Viki.com


  1. 1 : MaxT Says:

    So it’s about ICAC in SK. Interesting…

  2. 2 : Nana Ama Says:

    Wow nyc cast here . I cannot wait for this drama

  3. 3 : tigerb Says:

    it’s a good one. skj is gung ho as a young police officer/investigator will follow through

  4. 4 : tigerb Says:

    is the philippines a real destination for s.k. criminals and those the police are looking for? i see it in so many s.k. dramas.

  5. 5 : rima Says:

    good drama and good actors and best stroy cool police actor :);) love it aja aja

  6. 6 : Mrs Zhang Says:

    I dislike watching a drama that goes loopy loopy, taking viewers round and round without any progress in resolving the case at all. Just a waste of time ! Writer must have caught the loopy bug. Not a smart way of writing.

    It only frustrates viewers who would eventually give up watching. Wrong strategy. It is not making viewers wanting to watch more. Writer must have caught this bad loopy habit from tv drama productions from China.

    Another thing regarding this drama is that this drama is a dead serious and dark story where every character has a dark, dark secret to hide, and where each of them in their own way, is fighting for their own survival, from a serial murderous gang whose modus operandi is murder. So where do these surviving characters have the time for romance ! Romance wud be the furthest thing from their mind.

    But but some silly viewers are harping, talking and creating big romantic fuss or rather, bubble out of some friendly bonding hugs between fellow surviving members ! Eeeek ! Oh god ! How pathetic can this be? A romance novel or a romantic drama elsewhere would be a better venue to moon over romantic hugs and kisses…. The atmosphere there would suit better.

    It was only a simple bonding hug ! And yet its created a big ridiculous hoolabaloo.

  7. 7 : tigerb Says:

    @mrs. zhang#6: i think your comment is in the wrong web page. i look forward to each episode here as i find it interesting, it’s not ‘loopy’, and i don’t remember ‘a simple bonding hug’ among the characters. two more episodes, and i’ll see who are the other jang society members and what will chi gwang do since he has the bribery list, and what will the commissioner do if everyone in that list is exposed.

  8. 8 : tigerb Says:

    it’s a good police series to watch. everyone was watching everyone, trying to solve an internal police problem. not totally solved, as the jang society members still exist, the special investigation team regrouped, the rookie shall be watching the head of the team, who knows how to frame the guilty just so to close a case, ha, ha!.

  9. 9 : Soo Says:

    5/10 only for me

  10. 10 : OK OK OK Says:

    my sis finished watching and said this drama is exciting and nice. I will be watching soon. Too busy lately. 🙂

  11. 11 : MaxT Says:

    Don’t watch this drama unless you have a lot of time to waste. I pretty much skipped more than 80% of boring scenes. No romance in this drama what so ever. One story took 16 episodes to talk about. 3/10

  12. 12 : Ma.rocel santos Says:

    Done watching from Philippines…we love you kimhyunjoo

  13. 13 : Aigooo Says:

    Aigoo.. people who said this drama is so boring hahha lmao of course, most of you guys love to watch k drama that is about romance and such HAHHAHA but this drama is about police, crime and such things. This drama was well written and the actors was outstanding. Sometimes you guys have to use your brain to understand the story and each episodes.

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