Agent Kim Reactivated Cast: Full Actor and Character Guide

The Agent Kim Reactivated cast is led by So Ji-sub as Kim Do-hyeon, an ordinary bank employee who is secretly the retired operative known as Agent Kim and Code 66. Seo Su-min plays his daughter Kim Min-ji, while Choi Dae-hoon and Yoon Kyung-ho play his former-agent friends Sung Han-soo and Park Jin-cheol.

The ensemble mixes family drama, action and comedy. This guide focuses on who plays each character and why the role matters without revealing the final two episodes. For an opinion on the drama itself, visit our Agent Kim Reactivated review. Fans of father-led action thrillers can also explore the Man on Fire Netflix cast.

Agent Kim Reactivated cast at a glance

So Ji-sub as Kim Do-hyeon, Manager Kim and Agent Kim

So Ji-sub plays the title character, Kim Do-hyeon. At the start of the series, Kim appears to be a conflict-avoiding bank employee trying to raise his teenage daughter after the death of his wife. His routine is intentionally unremarkable. He worries about work, parenting and the growing emotional distance between himself and Min-ji.

That image collapses when Min-ji disappears. Kim is revealed to be a former elite operative whose old identity includes the codename Code 66. His fighting ability, situational awareness and network of contacts make it clear that his ordinary life was carefully constructed rather than natural.

So Ji-sub makes the contrast believable. The performance is not simply a change from kind father to unstoppable fighter. Kim remains a parent even when he becomes violent. His decisions are shaped by guilt, fear and the promise that he would leave his former life behind for his daughter.

Netflix viewers may recognize So Ji-sub from Mercy for None. Agent Kim Reactivated gives him another physical role, but the father-daughter relationship provides more emotional vulnerability than a straightforward revenge character.

Seo Su-min as Kim Min-ji

Seo Su-min plays Kim Min-ji, the teenage daughter at the center of the story. Min-ji is rebellious, outspoken and frustrated by what she sees as her father’s timid personality. She does not know that his refusal to fight is a deliberate attempt to protect the peaceful life he created for her.

Min-ji is more than a passive kidnapping victim. During the released episodes, she observes her captors, looks for escape opportunities and demonstrates the same stubborn survival instinct that defines her father. Her presence gives the series its emotional stakes because Kim is not trying to complete an abstract national-security mission. He is trying to save the person for whom he abandoned that world.

The relationship also creates the drama’s central emotional question. Even if Kim rescues Min-ji, can their ordinary family life survive after she sees who he used to be?

Choi Dae-hoon as Sung Han-soo

Choi Dae-hoon plays Sung Han-soo, one of Kim’s closest friends and a fellow father. Han-soo now runs a taekwondo school for children, but his calm suburban life hides a background that makes him unusually useful when Kim needs help.

Han-soo adds humor without becoming a joke character. His friendship with Kim and Jin-cheol gives the show a group dynamic built around middle-aged men who are underestimated by almost everyone around them. Their children see ordinary fathers, while viewers gradually understand that all three men are capable of surviving dangerous operations.

Choi Dae-hoon is also associated with Netflix’s The WONDERfools, and his timing helps Agent Kim Reactivated move between emotional tension and lighter camaraderie.

Yoon Kyung-ho as Park Jin-cheol

Yoon Kyung-ho plays Park Jin-cheol, another member of Kim’s old circle. Jin-cheol is a former marine who spends much of his present life gaming, helping in the neighborhood and appearing less disciplined than his past would suggest.

When the crisis escalates, Jin-cheol proves that the skills and loyalty of the old team have not disappeared. He is often the most openly comic member of the trio, but his humor does not reduce his importance. He helps turn Kim’s individual rescue mission into a story about friendship, shared history and fathers protecting one another’s families.

Yoon Kyung-ho will be familiar to many Netflix viewers from The Trauma Code: Heroes on Call. His expressive style makes Jin-cheol easy to recognize even in scenes crowded with agents and gangsters.

Joo Sang-wook as Ju Gang-chan

Joo Sang-wook plays Ju Gang-chan, the wealthy father of Ju Hye-ri and one of the drama’s most important antagonistic figures. His influence turns a school conflict into something far more dangerous because he is accustomed to using money, political relationships and violence to control consequences.

Gang-chan functions as a dark reflection of Manager Kim. Both men are fathers willing to act for their daughters, but their methods and values are completely different. Kim uses violence after every peaceful option has failed, while Gang-chan uses power to protect entitlement and avoid accountability.

Joo Sang-wook is known to Netflix audiences from Alchemy of Souls. Here, his polished appearance helps sell Gang-chan as someone who can move between respectable public spaces and criminal intimidation.

Son Na-eun as Jung Sang-a

Son Na-eun plays Jung Sang-a, Kim’s bank colleague and one of the first people shown trying to help him connect with Min-ji. Her early scenes make her appear connected only to his ordinary life, but the series gradually reveals a more complicated relationship to the intelligence operation surrounding him.

Sang-a becomes especially important when the story expands beyond the kidnapping. Her position allows the drama to connect Kim’s workplace identity, the Special Missions Directorate and the political stakes of his return to action.

Viewers may know Son Na-eun from Agency. Her performance balances warmth with enough reserve to make Sang-a’s intentions interesting even when the plot withholds information.

Yu Ji-ahn as Ju Hye-ri

Yu Ji-ahn plays Ju Hye-ri, Ju Gang-chan’s daughter and a student connected to the bullying conflict involving Min-ji. Hye-ri’s actions are not isolated from the adults around her. The series uses the school storyline to show how privilege, fear and parental influence can turn a teenage dispute into a much larger tragedy.

Her relationship with Gang-chan also helps explain his escalating choices. Instead of accepting that his daughter may be responsible for harm, he treats every challenge as an attack that must be crushed.

Kim Sung-kyu as Park Gang-seong

Kim Sung-kyu plays Park Gang-seong, a formidable North Korean operative. The character has the physical presence and training needed to challenge Kim directly, making his scenes different from the confrontations with ordinary criminals.

Gang-seong brings Kim’s past into the present. He is part of the reason the story cannot end with a simple rescue. Once Code 66 becomes active again, people connected to old missions, divided loyalties and intelligence rivalries begin moving around him.

Lee Jae-yong as Ri Eung-ryeong

Lee Jae-yong plays Ri Eung-ryeong, a senior North Korean intelligence figure. His authority places him above the street-level villains and turns Kim’s personal crisis into a national-security problem.

The character represents the institutional world Kim escaped. Gangsters can be defeated in direct combat, but officials like Ri operate through orders, leverage and political pressure. This makes the final stretch of the drama more complicated than the first rescue arc.

Won Hyun-jun as Kang Guk-cheol, also called Mole Cricket

Won Hyun-jun plays Kang Guk-cheol, the head of South Korea’s Special Missions Directorate. The character is also associated with the codename Mole Cricket. He knows enough about Kim’s past to understand both his value and his vulnerabilities.

Kang does not approach Kim as a free citizen who deserves to be left alone. He approaches him as a dormant asset who can still be useful. His willingness to pressure Kim through the safety of Min-ji and the freedom of Kim’s friends makes him one of the most unsettling authority figures in the series.

Park Jin-woo as Mr. Im

Park Jin-woo plays Mr. Im, the friendly laundry owner who regularly greets Kim. His ordinary neighborhood role fits the show’s recurring idea that people with dangerous histories can hide in familiar places.

The character is introduced with an element of mystery, encouraging viewers to question whether his interest in Kim is simply neighborly or connected to the larger network of former agents and intelligence officials.

Jo Bok-rae as Gold Tooth

Jo Bok-rae plays Gold Tooth, a gangster connected to the violent side of Ju Gang-chan’s world. His nickname and aggressive presence make him immediately recognizable.

Gold Tooth is driven by personal resentment as much as money. That makes him unpredictable because he is not simply following an order. He has emotional reasons to keep pursuing conflict even when the larger plan begins to collapse.

Lee Dong-ha as Manager Nam

Lee Dong-ha plays Manager Nam, Ju Gang-chan’s loyal aide. He acts as the chairman’s shadow, carrying instructions between the polished world of business and the people willing to use force on Gang-chan’s behalf.

Manager Nam is important because he shows how powerful figures avoid direct exposure. Gang-chan rarely needs to handle every threat himself when loyal subordinates can monitor enemies, arrange meetings and manage the consequences.

Why the three-father team works

The best cast chemistry comes from So Ji-sub, Choi Dae-hoon and Yoon Kyung-ho. Kim, Han-soo and Jin-cheol are capable fighters, but the show never forgets that they are also tired fathers dealing with children who find them embarrassing. Their ordinary problems make the action more entertaining because the series constantly shifts between domestic frustration and professional-level combat.

Viewers who enjoy large mystery ensembles may also like our I Will Find You Netflix cast guide, while fans of Korean survival dramas can use our Squid Game character guide to keep track of another much larger cast.

Cast name spellings may vary

Korean names can appear with different romanizations across Netflix, SBS, entertainment publications and fan databases. For example, Ju may also be written as Joo, Sung may appear as Seong, and Gang may appear as Kang. This guide follows Netflix spellings for the main characters wherever an official English spelling is available.

Frequently Asked Questions

Final cast summary

So Ji-sub anchors Agent Kim Reactivated, but the series works because every section of Kim’s life has a distinct supporting group. Seo Su-min gives the rescue mission emotional weight, Choi Dae-hoon and Yoon Kyung-ho create the show’s warmest chemistry, and Joo Sang-wook, Kim Sung-kyu, Lee Jae-yong and Won Hyun-jun represent different layers of the threat surrounding Code 66.

Sources

• Netflix Tudum official cast guide
• Netflix official title page and extended cast list
• SBS supporting cast report via Sports Kyunghyang