Written by Kim from All About K-Content
*Updated September 2026*
Although Agent Kim Reactivated is named after one man, its story depends on a much larger network of fathers, daughters, former operatives, and dangerous enemies.
At the center is Kim Do-hyeon, a quiet bank employee raising his teenage daughter alone. When Kim Min-ji disappears, he is forced to uncover the covert training and violent past he has spent years hiding.
This spoiler-light guide explains the major characters, how they are connected, and where you may have seen the actors before.
Spoiler note: This article discusses identities revealed through Episode 4 but does not reveal the ending.
Agent Kim Reactivated: Quick Facts
Korean title: 김부장 (Kim Bujang or Manager Kim)
Genre: Action, spy thriller, crime, and family drama
Episodes: 10
Directors: Lee Seung-young and Lee So-eun
Writer: Nam Dae-jung
Based on: The Naver webtoon Manager Kim by writer Toy and illustrator Jeong Jong-taek
Where to watch: Netflix internationally; originally broadcast by SBS in South Korea
Character names can appear differently across English-language sites. This guide follows Netflix’s spellings where available.
Main Cast at a Glance
So Ji-sub as Kim Do-hyeon, better known as Manager Kim
Choi Dae-hoon as Sung Han-soo
Yoon Kyung-ho as Park Jin-cheol
Joo Sang-wook as Ju Gang-chan
Son Na-eun as Jung Sang-a
Seo Su-min as Kim Min-ji
Yu Ji-ahn as Ju Hye-ri
Ok Taec-yeon as Park Yeong-gwang
Kim Sung-kyu as Park Gang-seong
Won Hyun-jun as Kang Guk-cheol
Lee Jae-yong as Ri Eung-ryeong
Lee Dong-ha as Chief Nam
Jo Bok-rae as Gold Tooth
What Does “Kim Bujang” Mean?
The Korean title 김부장 does not refer to a superhero name. Bujang is a Korean workplace rank generally translated as "department head" or "senior manager."
Kim Do-hyeon is the head of the accounting team at Sangsaeng Savings Bank, so his colleagues simply call him “Manager Kim.” The deliberately ordinary title is part of the irony: the tired office worker carrying a briefcase is in fact one of the most dangerous men in the Korean peninsula.
So Ji-sub as Kim Do-hyeon, or Manager Kim
The duality of Mr. Kim: From bank manager to legendary operative. Photo: SBS / Netflix. Source
Kim Do-hyeon appears to be an unremarkable middle-aged bank employee. He has rounded shoulders, wears plain suits, and avoids confrontation whenever possible. His greatest concern is repairing his increasingly awkward relationship with his daughter, Min-ji.
That ordinary appearance conceals his history as a North Korean operative who later carried out missions for a South Korean special unit. He retired after his wife’s death and devoted himself to raising their daughter.
When Min-ji goes missing, Kim does not suddenly acquire fighting skills. He stops pretending that he has forgotten them.
So Ji-sub makes the contrast believable by keeping both sides of Kim restrained. His character does not become loud or theatrical when he returns to combat. The same quiet concentration he brings to office work becomes frightening once he starts tracking his daughter.
Viewers may recognize So Ji-sub from The Master’s Sun, Oh My Venus, My Secret Terrius and Netflix’s Mercy for None.
Seo Su-min as Kim Min-ji
Kim Min-ji is Manager Kim’s teenage daughter and the person who sets the entire story in motion.
She is embarrassed by her timid-looking father and frustrated by his habit of apologizing even when she believes she has done nothing wrong. Their strained relationship gives the rescue story more emotional weight: Kim is not only trying to find Min-ji but also confronting how little he understood about her life.
Min-ji is not written as completely helpless. She stands up to Ju Hye-ri and refuses to accept humiliation quietly, even when doing so places her in greater danger.
Agent Kim Reactivated was Seo Su-min’s acting debut. In a post-series interview, she explained that she had no previous filmography and won the part after several rounds of auditions. Her natural father-daughter chemistry with So Ji-sub helps ground the drama’s more exaggerated action.
Choi Dae-hoon as Sung Han-soo
Seong Han-soo, a Taekwondo gold medalist. Photo: SBS / Netflix. Source
Sung Han-soo is one of Kim’s longtime friends and former comrades. A former taekwondo gold medalist, he now runs a dojang where he teaches children. He is also the father of a teenage son named Tae-hoon.
Han-soo is the most disciplined member of the three-father team. His combat style emphasizes technique and control, matching the calm personality he presents in daily life.
He also understands Kim’s situation as a parent. That connection is what turns him from an old friend into an active partner in the search for Min-ji.
Choi Dae-hoon is known for roles in Beyond Evil, Extraordinary Attorney Woo, One Dollar Lawyer and The WONDERfools. His ability to move between seriousness and dry comedy makes Han-soo more than another invincible fighter.
Yoon Kyung-ho as Park Jin-cheol
Park Jin-cheol provides the raw brute force (and comic relief). Photo: SBS / Netflix. Source
Park Jin-cheol is the loudest and most unpredictable member of the dad trio.
A former Marine and battlefield veteran, Jin-cheol was once feared as the “God of the Battlefield.” In civilian life, however, he is better known as Da-bin’s enthusiastic father and a volunteer with the Marine Corps Veterans Association.
Unlike Kim, Jin-cheol has difficulty hiding his aggressive instincts. He brings physical comedy and chaotic energy to the group, but his affection for his family is never treated as a joke.
Yoon Kyung-ho will be familiar to viewers of The Trauma Code: Heroes on Call, Itaewon Class, and My Name. His combination of warmth, humour, and physical presence makes Jin-cheol one of the drama’s most memorable characters.
Joo Sang-wook as Ju Gang-chan
He began as hired muscle before fighting his way into the construction business. Money is his first solution to a problem; violence is his second. His conflict with Manager Kim begins after the confrontation between their daughters.
Gang-chan is not simply the powerful man standing between Kim and Min-ji. He is Kim’s distorted mirror. Both men claim to act for their children, but their ideas of protection are completely different.
Kim risks himself to protect his daughter. Gang-chan uses wealth and intimidation to shield Hye-ri from consequences. That contrast turns the drama’s central conflict into a battle between two versions of fatherhood.
Joo Sang-wook takes on a rare full-scale villain role after appearing in dramas including Alchemy of Souls, Good Doctor, and The King of Tears, Lee Bang-won.
Yu Ji-ahn as Ju Hye-ri
Ju Hye-ri is Gang-chan’s daughter and Min-ji’s classmate.
She is accustomed to using her father’s name and influence to control the people around her. Her anger toward Min-ji begins with jealousy, but the conflict grows because Hye-ri believes her family can protect her from any consequences.
Hye-ri and Min-ji reflect the different homes in which they were raised. Min-ji may misunderstand her father, but she has learned to stand on her own. Hye-ri has learned that power can replace responsibility.
Yu Ji-ahn makes Hye-ri unpleasant without turning her into a cartoon. Her performance also helps explain why Gang-chan’s destructive parenting is so important to the story.
Son Na-eun as Jung Sang-a
Son Na-eun plays the conflicted double agent, Jung Sang-a. Photo: SBS / Netflix. Source
Jung Sang-a initially appears to be a fashionable, outgoing deputy manager at Sangsaeng Savings Bank. She works with Kim and helps him understand the interests of teenagers such as Min-ji.
However, Sang-a is secretly an operative assigned by the Special Missions Directorate to monitor Kim’s civilian life.
Her position places her between the drama’s two worlds. She knows Kim as both a wanted former operative and an awkward father who has spent years trying to live quietly. As his search becomes more dangerous, she must decide how closely she will follow her orders.
Son Na-eun, formerly a member of Apink, previously appeared in Agency, Ghost Doctor and Lost. Sang-a gives her an opportunity to combine lighter office comedy with controlled action and moral uncertainty.
Who Is the Real Agent 66?
This is where many English cast guides become confusing.
Park Yeong-gwang, played in a special appearance by Ok Taec-yeon, is the operative originally assigned the number 66. He and Kim trained together in North Korea from childhood, becoming both comrades and rivals.
Episode 4 identifies Yeong-gwang as No. 66 and Kim as No. 73. Later events cause the Agent 66 identity to become closely associated with Kim and his case, which is why international summaries frequently call Kim “Agent 66.”
However, listing So Ji-sub’s character simply as “Kim Do-hyeon/Agent 66” removes an important distinction from the story. “Kim Do-hyeon” or “Manager Kim” is the clearer name for the character, while Park Yeong-gwang should be identified as the original No. 66.
Ok Taec-yeon’s appearance is brief, but Yeong-gwang is essential to understanding Kim’s past and why North Korean intelligence continues to pursue him.
Other Important Supporting Characters
Kim Sung-kyu as Park Gang-seong
Park Gang-seong is a North Korean operative sent to South Korea with orders to pursue Kim. His mission also carries a deeply personal motive connected to Yeong-gwang.
Won Hyun-jun as Kang Guk-cheol
Kang Guk-cheol is the director of South Korea’s Special Missions Directorate. He is responsible for monitoring Kim and containing the diplomatic danger created when the retired operative becomes active again.
Lee Jae-yong as Ri Eung-ryeong
Ri Eung-ryeong is a senior North Korean intelligence official connected to Kim’s childhood training and his earliest missions. His decisions continue to shape the conflict years later.
Lee Dong-ha as Chief Nam
Chief Nam is Ju Gang-chan’s chief of staff, bodyguard, and most reliable enforcer. His controlled manner makes him a quieter but more physically dangerous opponent than Gang-chan’s other employees.
Jo Bok-rae as Gold Tooth
Gold Tooth is a gangster working under Gang-chan. Although he follows the businessman’s orders, he also carries a private desire for revenge, making his loyalty less dependable than it first appears.
Park Jin-woo as Mr. Im
Mr. Im owns Dowon Laundry near Kim’s home. His interest in Kim’s daily movements suggests that the supposedly ordinary neighborhood contains more secrets than it appears to.
Seo Ji-hye as Rim Yu-jin
Rim Yu-jin is Kim’s late wife and Min-ji’s mother. Although Seo Ji-hye appears only in flashbacks, Yu-jin explains why Kim abandoned his former life and why being Min-ji’s father matters more to him than any identity he held as an operative.
Why the “Dad Trio” Works
Kim, Han-soo and Jin-cheol are convincing as a team because they are not interchangeable action heroes.
Kim is controlled and strategic. Han-soo relies on discipline and technique. Jin-cheol brings raw force and unpredictable energy. Their different personalities produce comedy, but their connection runs deeper than their shared combat history.
All three men are trying to adjust to children who are old enough to pull away from them. The drama uses that familiar middle-aged-parent anxiety to make its exaggerated espionage story feel surprisingly human.
Gang-chan completes the comparison by showing what happens when parental love becomes control. The series repeatedly asks the same question of its fathers: are they protecting their children or protecting their own pride?
That question gives the cast more to play than a basic rescue thriller would normally provide.
Related Agent Kim Reading
Sources
Which member of the dad trio was your favorite? Let me know in the comments.