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Title: 언더커버 / Undercover
Genre: Action, Crime, Police
Episodes: 16
Broadcast network: jTBC
Broadcast period: 2021-Apr-23 to 2021-June-12
Air time: Fridays & Saturdays 23:00


This drama is a remake of the UK television series “Undercover” that aired on BBC One from 2016-April-3 to 2016-May-15.

Han Jung Hyun (Ji Jin Hee) is an agent of National Intelligence Service (South Korea) formerly Agency for National Security Planning, who has been hiding his identity for quite sometime. Choi Yeon Soo (Kim Hyun Joo), a human rights lawyer, becomes the first head of the agency for justice. These main leading characters of the series uncover the truth, pitted against a huge force holding top position. The series tests their relationship as husband and wife when the secret life of Jung Hyun comes to fore.


Main Cast

Ji Jin Hee as Han Jung Hyun
Yeon Woo Jin as Han Jung Hyun (young)
Kim Hyun Joo as Choi Yeon Soo
Han Sun Hwa as Choi Yeon Soo (young)
Jung Man Sik as Do Young Gul
Park Doo Sik as Do Young Gul (young)
Heo Jun Ho as Im Hyeong Rak

Jung Hyun & Yun Soo’s family

Yoo Sun Ho (유선호) as Han Seung Koo (Jung Hyun & Yun Soo’s autistic son)
Lee Jae In as Han Seung Mi (Jung Hyun & Yun Soo’s daughter)
Park Geun Hyung as Lee Man Ho (Lee Suk Kyu’s father)

National Intelligence Service

Kwon Hae Hyo as Oh Pil Jae
Joo Suk Tae as Park Won Jong
Han Go Eun as Go Yoon Joo / Kim Do Hee
Kyungri as Go Yoon Joo / Kim Do Hee (young)
Nam Sung Jin as Cha Min Ho / Jo Dong Pal
Lee Kyu Bok as Min Ho (young)

Senior Civil Servant Corruption Investigations Agency

Choi Dae Chul as Chu Dong Woo
Lee Han Wie as Bae Goo Taek
Bae Yoon Kyung as Sa Moo Kwan
Kang Young Suk as Jung Chul Hoon

People around Yun Soo

Lee Seung Joon as Kang Choong Mo
Hong Jin Ki as Choong Mo (young)
Choi Kwang Il as Hwang Jung Ho
Im Ji Kyu as Jung Ho (young)
Son Jong Hak as Yoo Sang Dong
Kim Soo Jin as Min Sang Ah
Han Bo Bae as Min Sang Ah (young)


Song Young Kyu as Kwak Moon Heum
Park Jin Woo as Detective Koo
Kim Young Dae as Kim Tae Yul
Cha Soon Bae as Song Moon Bae (Chief Editor at Daehan Jeil Daily)
Jung In Ki as Kim Myung Jae (Secretary General of the Blue House)
Ahn Se Ho as Kim Kwang Chul (an assistant to Do Young Kul)
Shim Hyung Tak as Lee Min Yool (ep 3-4)
Kim Young Woong as subway control room staff (ep 3)
Park Joo Hyung as drug gang boss (ep 4, 11)
Lee Se Na as Kim Da Kyung (ep 4)
Yun Je Wook as loan shark (ep 7)
Sung Byung Sook as Kim Tae Yul’s mother (ep 12)

Production Credits

Production Companies: Story TV, jTBC Studios
Director: Song Hyun Wook
ScriptWriter: Baek Cheol Hyun, Song Ja Hoon, Jung Hye Eun

Episode Ratings

Date Episode AGB TNmS
2021-04-23 1 3.471 -
2021-04-24 2 3.785 -
2021-04-30 3 2.841 -
2021-05-01 4 3.367 -
2021-05-07 5 2.885 -
2021-05-08 6 4.243 -
2021-05-14 7 3.041 -
2021-05-15 8 4.175 -
2021-05-21 9 3.777 -
2021-05-22 10 4.187 -
2021-05-28 11 3.768 -
2021-05-29 12 3.816 -
2021-06-04 13 3.922 -
2021-06-05 14 4.517 -
2021-06-11 15 3.916 -
2021-06-12 16 5.229 -

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

*** 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. ***


Related Photo

Official Site

Official Trailer
Trailer I
Trailer II

Watch Online in Viki.com (Coming Soon)


  1. 1 : Gemma Says:

    Wow!!!ji jin hee and kim hyun joo again..sooooo excited with their tandem..from I HAVE A LOVER to UNDERCOVER👍👍👍🙌🙌🙌

  2. 2 : Rena Says:

    My favorite combo😁

  3. 3 : Guy Says:

    Where can I watch this in the US? Viki, Netflix?

  4. 4 : Khatron Ke Khiladi 11 Full Episodes Says:

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  5. 5 : Flavia Vieira Says:

    i love Ji Jin Hee !!!!

  6. 6 : Cheorin Says:

    Wow, the arrogance of the NIS is on par with the CIA and FBI in the US. It’s like; how dare you ask how we spend taxpayer dollars. Transparency is for you the elected, not for us. We are establishment; our posts are by appointment; we’re the elites of government you know. Go against us—We have six ways from Sunday at getting back at you. Lol!!!

    They cast the right actor for director of NIS in this drama. He looks like a psychopath with greasy hair and oily skin.

    He put the hit on Choi Yeon Soo because she isn’t someone they want as director of CIO? Wow, this parallels the shenanigans of the IC in the US for the past 5+ years. Lol!!

  7. 7 : László Veszelovszki Says:

    The series is much better, than many people think!

  8. 8 : Tira Says:

    My favorite actor Ji Jin Hee and actress Kim Hyun Joo. At first, the episode was not so interesting but it get more interesting from second episode on. Hopefully Choi Yeon Soo know that her husband is trying to protect her all the time while she is trying to fight against corruption. Let hope that the happy ending that the truth prevail.

    Thank you the actors, actresses, writer and producer for this exciting drama!

  9. 9 : Michael Says:

    From Epi 1 till 14 currently, have been on ma toes…. KDrama🔥🔥👏👏✌️✌️🤩😍🥰🥰… Love the Suspense!!!!

  10. 10 : Aseret Says:

    You can watch iron dramacool

  11. 11 : Aseret Says:

    I meant sorry you can watch this serie on dramacool

  12. 12 : tigerb Says:

    have not watched the original british production, but this series is good to watch

  13. 13 : KdramaFAN Says:

    This show is highly recommended! I’ve enjoyed every episode till the end, very good thriller

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