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    Home»Articles»Top 20 Best Thriller Korean Dramas You Must Watch

    Top 20 Best Thriller Korean Dramas You Must Watch

    Nothing can beat the feeling and adrenaline rush that thrillers give us. Here are some of the must-watch thriller dramas to keep you hooked.
    By Alma SantosUpdated:March 12, 2023

    If you love to watch thrillers, here are some of the best & recommended thriller Korean dramas to watch.

    Korean dramas are addicting & are popular now. Many have started watching dramas as most of them are now available on Netflix & Viki. They are quite good to watch with family too.

    All types of dramas are available to watch online ranging from rom-com to action thrillers. They have an interesting plot, good cinematography & perfect emotions. The plot twists are also great.

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    Contents show
    Best Thriller Korean Dramas
    1. Signal
    2. Flower Of Evil
    3. Extracurricular
    4. Strangers From Hell
    5. Vagabond
    6. Kingdom
    7. Tunnel
    8. Save Me
    9. Voice
    10. Stranger
    11. Through The Darkness
    12. Train
    13. Defendant
    14. The Guest
    15. 365: Repeat The Year
    16. Beyond Evil
    17. Mouse
    18. Tell Me What You Saw
    19. Taxi Driver
    20. Happiness
    Wrapping Up

    Best Thriller Korean Dramas

    While Korean dramas are popular for its romance genre, there are some good thriller Korean dramas to watch to keep you on the edge of your seat.

    Thriller korean dramas

    The two things that keep you watching thriller dramas are their gripping storyline & flawless acting with some action packed scenes that keep you engaged.

    If you want to watch some of the best thrillers that Korean provides, here are 20 best thriller Korean dramas for you to watch & enjoy.

    1. Signal

    Park Hae Young witnesses the kidnapping of a girl 15 years ago. 15 years later, Hae Yeong is now a police officer and criminal profiler. One day, he finds a walkie-talkie that allows him to get in contact with Detective Lee Jae Han who is in the past. Together, they solve a series of murders.

    Read Signal Review

    signal kdrama 11

    Cast –

    • Lee Je Hoon as Park Hae Yeong
    • Kim Hye Soo as Cha Soo Hyun
    • Jo Jin Woong as Lee Jae Han
    • Kim Won Hae as Kim Gye Cheol

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    2. Flower Of Evil

    Baek Hee Sung is a craftsman living with his wife, Cha Ji Won & daughter. But he hides some dark secrets that even his wife is unaware of. His wife is a homicide detective who investigates a case of a psychopath who is quite close to her.

    Read Flower Of Evil Review

    flower of evil kdrama 11

    Cast –

    • Lee Joon Gi as Baek Hee Sung
    • Moon Chae Won as Cha Ji Won
    • Jang Hee Jin as Do Hae Soo
    • Seo Hyun Woo as Kim Moo Jin

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    3. Extracurricular

    This drama is about three high school students Ji Soo, his partner Gyu Ri & school bully Min-Hee who start committing crimes to earn money & pay for their college and the unpredictable dangers they face as a result.

    Read Extracurricular Review

    extracurricular kdrama 11

    Cast –

    • Kim Dong Hee as Oh Ji Soo
    • Park Joo Hyun as Bae Gyu Ri
    • Jung Da Bin as Seo Min Hee
    • Nam Yoon Su as Kwak Ki Tae

    No. Of Episodes – 10

    Watch On – Netflix

    4. Strangers From Hell

    Jong-Woo moves from the countryside to Seoul after his friend, Jae Ho, offers him a job. While looking for a place to live, he comes across a cheap hostel. He decides to live there for 6 months. But strange things start to happen with him.

    Read Strangers From Hell Review

    strangers from hell kdrama 11

    Cast –

    • Im Si Wan as Yoon Jong Woo
    • Lee Dong Wook as Seo Moon Jo
    • Lee Jung Eun as Eom Bok Soon
    • Ahn Eun Jin as Seo Jung Hwa

    No. Of Episodes – 10

    Watch On – Netflix

    5. Vagabond

    Cha Dal Gun is a stuntman whose nephew dies in a plane crash. He comes to know that there is a huge scandal involving the government behind the plane crash & sets off to reveal the truth along with a NIS agent Go Hae Ri.

    Read Vagabond Review

    vagabond kdrama 11

    Cast –

    • Lee Seung Gi as Cha Dal Gun
    • Bae Suzy as Go Hae Ri
    • Shin Sung Rok as Gi Tae Ung
    • Moon Jung Hee as Jessica Lee

    No. Of Episodes – 16

    Watch On – Netflix

    6. Kingdom

    Set in the Joseon period, the deceased king rises and a mysterious plague begins to spread; the prince must face a new breed of enemies to unveil the evil scheme and save his people. It has season 2 as well.

    Read Kingdom Review

    kingdom kdrama 11

    Cast –

    • Joo Ji Hoon as Lee Chang
    • Ryu Seung Ryong as Jo Hak Joo
    • Bae Doo Na as Seo Bi
    • Kim Sung Gyu as Young Shin

    No. Of Episodes – 12 (S1: 6 & S2: 6)

    Watch On – Netflix

    7. Tunnel

    In 1986, Park Kwang Ho works as a detective. While working he passes through a time portal, which transports him to present-day Seoul. He meets a new partner Kim Sun Jae. They try to find out the serial killer.

    Read Tunnel Review

    tunnel kdrama 11

    Cast –

    • Choi Jin Hyuk as Park Kwang Ho
    • Yoon Hyun Min as Kim Seon Jae
    • Lee Yoo Young as Shin Jae Yi
    • Jo Hee Bong as Jeon Seong Shik

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    8. Save Me

    Sang Mi and her family move to Muji-gun. There she meets four young men. Later, Sang Mi and her family are approached by the Spiritual Father of Goosunwon who offers to help them. However, they slowly get sucked into the pseudo-religious cult and the four young men try to save her.

    save me kdrama 11

    Cast –

    • Seo Ye Ji as Im Sang Mi
    • Ok Taec Yeon as Han Sang Hwan
    • Woo Do Hwan as Seok Dong Chul
    • Jo Sung Ha as Baek Jung Ki

    No. Of Episodes – 16

    Watch On – Netflix

    9. Voice

    Detective Moo Jin Hyuk after his wife’s death, works with professional voice profiler Kwon Joo, whose father is killed, to solve a different crime, chasing for the serial killer who is responsible for the deaths of their family members.

    voice kdrama 11

    Cast –

    • Jang Hyuk as Moo Jin Hyeok
    • Lee Ha Na as Kang Kwon Joo
    • Baek Sung Hyun as Shim Dae Shik
    • Son Eun Seo as Park Eun Soo

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    10. Stranger

    Hwang Shi Mok, a prosecutor finds him in a murder case. He meets Police Lieutenant Yeo Jin at a murder crime scene. They work together to wipe out corruption at the prosecutor’s office and solve a serial murder case.

    stranger kdrama 11

    Cast –

    • Jo Seung Woo as Hwang Shi Mok
    • Bae Doo Na as Han Yeo Jin
    • Lee Joon Hyuk as Seo Dong Jae
    • Shin Hye Sun as Young Eun Soo

    No. Of Episodes – 16

    Watch On – Netflix

    11. Through The Darkness

    The drama will tell the story of South Korea’s first criminal profiler as he struggles to look inside and read the hearts of serial killers during a time when the word “profiling” did not exist. It is based on the 2018 book of the same title.

    through the darkness kdrama 11

    Cast –

    • Kim Nam Gil as Song Ha Young
    • Kim So Jin as Yoon Tae Goo
    • Jin Seon Kyu as Kook Young Soo
    • Ryeoun as Jung Woo Joo

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    12. Train

    Seo Do Won is a detective who tries to save Seo Kyung who is a prosecutor. There are two different worlds in this drama. Do Won travels to the other world to track the serial killer with the help of the other Seo Kyung.

    train kdrama 11

    Cast –

    • Yoon Shi Yoon as Seo Do Won
    • Kyung Soo Jin as Han Seo Kyung
    • Shin So Yool as Lee Jung Min
    • Lee Hang Na as Oh Mi Sook

    No. Of Episodes – 12

    Watch On – Viki

    13. Defendant

    Park Jung Woo is a prosecutor who has lost his memory and discovers that he is convicted on death row. He is now left with no option but to find the truth behind his condition and prove his innocence.

    defendant kdrama 11

    Cast –

    • Ji Sung as Park Jung Woo
    • Uhm Ki Joon as Cha Sun Ho
    • Kwon Yu Ri as Seo Eun Hye
    • Oh Chang Seok as Kang Joon Hyuk

    No. Of Episodes – 18

    Watch On – Viki

    14. The Guest

    Yoon Hwa Pyung, a psychic Choi Yoon; a young boy born in a religious Catholic family, and Kang Kil Yeong; the daughter of a detective tries to work together to defeat a powerful demon named “Son”.

    the guest kdrama 11

    Cast –

    • Kim Dong Wook as Yoon Hwa Pyung
    • Kim Jae Wook as Choi Yoon
    • Jung Eun Chae as Kang Gil Young
    • Lee Won Jong as Yook Gwang

    No. Of Episodes – 16

    Watch On – Netflix

    15. 365: Repeat The Year

    In this drama, ten individuals get the opportunity to return in time by one year, but strange & unexpected circumstances begin to emerge when their destinies are changed & turned. The drama comprises of a plot twist.

    Read 365: Repeat The Year Review

    365 repeat the year kdrama 11

    Cast –

    • Lee Joon Hyuk as Ji Hyung Joo
    • Nam Ji Hyun as Shin Ga Hyun
    • Kim Jee Soo as Lee Shin
    • Lee Sung Wook as Park Sun Ho

    No. Of Episodes – 16

    Watch On – Viki

    16. Beyond Evil

    The story of two fearless lawmen, Lee Dong Shik and Han Joo Won, who break the law to catch a serial killer. In the course of uncovering the culprit’s identity, they question the innocence of everyone involved in the case including themselves.

    beyond evil kdrama 11

    Cast –

    • Shin Ha Kyun as Lee Dong Shik
    • Yeo Jin Goo as Han Joo Won
    • Choi Dae Hoon as Park Jung Je
    • Choi Sung Eun as Yoo Jae Yi

    No. Of Episodes – 16

    Watch On – Netflix, Viki

    17. Mouse

    Ba Reum is a police officer whose life changes when he encounters a psychopathic killer. This drives him and his partner to unveil the truth behind psychopathic behaviours. A drama that asks the question, “What if we could identify psychopaths in advance?”

    mouse kdrama 11

    Cast –

    • Lee Seung Gi as Jung Ba Reum
    • Lee Hee Joon as Ko Moo Chi
    • Park Joo Hyun as Oh Bong Yi
    • Kyung Soo Jin as Choi Hong Joo

    No. Of Episodes – 20

    Watch On – Viki

    18. Tell Me What You Saw

    Hyun Jae used to be a top criminal profiler. He gets vanished after his fiancé’s death. Meanwhile, Soo Young is a police officer in the countryside. She is selected as a rookie detective who will partner with Hyun Jae informally. Together they work to solve cases.

    tell me what you saw kdrama 11

    Cast –

    • Jang Hyuk as Oh Hyun Jae
    • Choi Soo Young as Cha Soo Young
    • Jin Seo Yun as Hwang Hwa Young
    • Jang Hyun Sung as Choi Hyung Pil

    No. Of Episodes – 16

    Watch On – Viki

    19. Taxi Driver

    Do Gi is a taxi driver and works for a company which offers a “revenge-call” service to its clients. The company is a secret organization that avenges victims whom the law didn’t protect. If clients ask them to take revenge, Do Gi and his co-workers will perform the service.

    taxi driver kdrama 11

    Cast –

    • Lee Je Hoon as Kim Do Gi
    • Esom as Kang Ha Na
    • Kim Eui Sung as Jang Sung Chul
    • Pyo Ye Jin as Ahn Go Eun

    No. Of Episodes – 16

    Watch On – Viki

    20. Happiness

    Set in the near future, an apartment building has been newly constructed. The residents are from diverse backgrounds, but a new infectious disease breaks out. The drama depicts the subtle psychological battle and the class discrimination that occurs.

    happiness kdrama 11

    Cast –

    • Han Hyo Joo as Yoon Sae Bom
    • Park Hyung Sik as Jung Yi Hyun
    • Jo Woo Jin as Han Tae Seok
    • Park Joo Hee as Ji Soo

    No. Of Episodes – 12

    Watch On – Viki

    Wrapping Up

    These are just 20. There are many more to discover & watch. So, pick any one or all of them & get ready to watch. Most of them are available on Netflix & Viki. Besides dramas, there are many more Korean Thriller Movies to watch that keeps you entertaining more & more.

    Follow us on Facebook, Instagram, Twitter, Pinterest, Tumblr, Telegram & subscribe YouTube channel for more exciting content on Korean dramas & movies.

    Keep watching dramas !!

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    Alma Santos

    Hi! I'm Alma Santos from Philippines. I have watched over hundreds of dramas and can speak Korean a little bit. My favorite drama is Crash Landing On You.

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