If you love gripping plots, intense action, high stakes, and a dash of romance, K-drama spy thrillers are exactly what you need. With political conspiracies, double identities, and secret missions, these thrilling series will keep you on the edge of your seat. With the recent ending of 'Undercover High School,' here are eight must-watch K-drama spy thrillers that'll have you hooked from the very first episode.

1. 'Healer' (2014)
When a mysterious "night courier," known as Healer, teams up with a determined journalist named Chae Young Shin, they uncover a deep and dangerous political conspiracy. Blending heart-racing action, suspense, and a deeply moving romance, 'Healer' remains a beloved fan-favorite drama for its flawless storytelling and charismatic leads.

2. 'Iris' (2009)
Two highly skilled South Korean National Security Service agents find themselves ensnared in a deadly global conspiracy orchestrated by an elusive organization called IRIS. Fighting betrayal, confronting impossible choices, and navigating complicated romantic entanglements, these agents race against time to save their nation—and themselves.

3. 'Vagabond' (2019)
When his beloved nephew dies in a suspicious plane crash, stuntman Cha Dal Geon embarks on a relentless search for answers. Teaming up with an NIS agent, he exposes a terrifying web of corruption involving powerful political figures. With breathtaking stunts, international intrigue, and intense drama, 'Vagabond' delivers non-stop thrills.

4. 'The K2' (2016)
Former mercenary and bodyguard Kim Je Ha is hired to protect the wife of a presidential candidate. Soon enough, he discovers that the political world he's entered is darker and more dangerous than he imagined, filled with deception and hidden agendas. Packed with intense action sequences and intriguing plot twists, 'The K2' is an exhilarating watch.

5. 'Good Casting' (2020)
Offering a refreshing twist to the genre, 'Good Casting' follows three undercover female agents tasked with infiltrating a major corporation to expose dark secrets and corruption. Their undercover mission quickly spirals into chaos, humor, and danger, highlighting strong female leads in an entertaining and action-packed narrative.

6. 'My Secret Terrius' (2018)
Kim Bon, a former National Intelligence Service agent living quietly as a civilian, suddenly finds his peaceful life disrupted when his neighbor’s husband mysteriously dies. Driven by curiosity and duty, Kim Bon re-enters the dangerous world of espionage to uncover the truth, mixing comedy, suspense, and heartfelt moments seamlessly.

7. 'Man to Man' (2017)
A beloved actor by day and a covert National Intelligence Service agent by night, Yeo Woon Gwang balances his glamorous public persona with dangerous secret missions. This entertaining drama combines thrilling espionage with clever humor, captivating audiences with a unique blend of action, comedy, and suspense.

8. 'Athena: Goddess of War' (2010)
Following the massive success of 'Iris,' this spin-off dives deeper into the world of international espionage, centering around the fight against a ruthless terrorist organization known as Athena. Featuring elite agents battling to safeguard national security, this action-filled drama is packed with international intrigue, tense confrontations, and intense emotional drama.

Which thrilling K-drama spy series is next on your watchlist?

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