Agent Kim Reactivated — Characters & Cast

To fulfill his deathbed promise to his late wife by keeping Min-ji safe.

Begins as an awkward, soft-spoken bank manager desperate to keep his black-ops past hidden. When his daughter goes missing, he sheds his timid demeanor, reactivates Agent 66, and cuts through underworld networks. By the end of the series, he stages his death to escape government exploitation and achieves true freedom, starting a new life with Min-ji.

Protecting innocent children and supporting his brother-in-arms.

Operates a quiet taekwondo dojang while managing everyday parenting stress. When Kim calls for help, Han-soo steps up, demonstrating his elite kicking techniques and standing as an unwavering pillar of support through every dangerous skirmish.

Brotherhood and punishing corrupt figures who threaten families.

A former military heavy hitter turned eccentric dad. Jin-cheol provides muscle and comedic relief, evolving from an unorganized veteran into a crucial tactical ally who fights through corrupt syndicates.

Unchecked ambition, power, and defending his personal empire at all costs.

Rose from a street thug to chairman of Juhak Construction. He uses his wealth and influence to cover up his daughter's crimes. His refusal to back down leads him to align with rogue North Korean agents and kidnap children, resulting in his ultimate defeat and arrest.

Fulfilling her mission duties, which evolves into genuine empathy and moral conviction.

Introduced as an outspoken Gen Z bank employee who clashes with Manager Kim. She is later revealed to be an undercover agent for the Special Missions Directorate (SMD). As she witnesses Kim’s dedication to his daughter, her strict professional stance shifts, leading her to aid Kim in securing a clean slate.