1. “Healer” (2014-2015): A thrilling drama about a mysterious night courier, known as the “Healer,” who gets embroiled in a conspiracy bigger than he ever imagined.
![](https://rollingstoneindia.com/wp-content/uploads/2022/01/Healer-Official-Poster-Photo-Courtesy-of-KBS.jpg)
2. “City Hunter” (2011): Based on a Japanese manga, this drama revolves around a young man trained as a sharpshooter and combatant, seeking revenge against corrupt politicians.
![](https://www.kdramalove.com/city-hunter-28th-of-july-5.jpg)
3. “K2” (2016): A former mercenary soldier gets involved in a major political conspiracy and is hired as a bodyguard by the wife of a presidential candidate.
![](https://static.next-episode.net/tv-shows-images/huge/the-k2.jpg)
4. “Vagabond” (2019): A stuntman gets involved in uncovering a national corruption scandal after a tragic plane crash.
![](https://kdramarecommendation.com/wp-content/uploads/2023/08/85dbc-b3d66dcea4214b0897ff7130dc055299.jpeg-2.png)
5. “Man to Man” (2017): A tale of a legendary bodyguard to a top Hallyu star as he gets involved in a series of misadventures.
![](https://m.media-amazon.com/images/M/MV5BYWEzZjQxNTctOTJjMy00YzhmLWExNDUtYzMzYjE1NTgwZTAyXkEyXkFqcGdeQXVyMjIzMTQzNDE@._V1_.jpg)
6. “Iris” (2009): A gripping story of secret agents, betrayal, and a dangerous North-South Korean love story.
![](https://kdramarecommendation.com/wp-content/uploads/2023/08/35f17-cc2bblog2bpost2biris2b9922bpx.jpg)
7. “Two Weeks” (2013): A man, wrongly accused of murder, has two weeks to save his daughter from leukemia and prove his innocence.
![](https://static.next-episode.net/tv-shows-images/huge/two-weeks.jpg)
8. “Bridal Mask” (Gaksital) (2012): Set in the 1930s during the Japanese occupation of Korea, it’s about a man who becomes a masked freedom fighter.
![](https://asianwiki.com/images/8/8c/Bridal_Mask-051.jpg)
9. “Signal” (2016): While not purely action, this drama brilliantly merges crime and thriller elements. It involves detectives from the present and a detective from the past communicating via a walkie-talkie to solve long-time unsolved cases.
![](https://flxt.tmsimg.com/assets/p14267577_b_h9_ae.jpg)
10. “Voice” (2017): A detective and a voice profiler join forces to catch a serial killer. The series is intense, focusing on the emergency call center and its efforts to catch criminals.
![](https://www.nme.com/wp-content/uploads/2021/08/Lee-ha-na-song-seung-heon_voice-4-tvn-160821-e1629108084508.jpg)
11. “Kill It” (2019): The story of a veterinarian who leads a double life as a contract killer, seeking answers about his past.
![](https://1.vikiplatform.com/c/36552c/e289afce59.jpg?x=b&a=0x0)
12. “Extracurricular” (2020): A high school student, leading a double life, gets caught up in a dangerous crime world.
![](https://www.heavenofhorror.com/wp-content/uploads/2020/04/Extracurricular-netflix-review.jpg)