If you have been keeping up with Netflix’s explosive action drama Agent Kim Reactivated, you already know one crucial rule: never mess with a retired covert agent’s family.
Adapted from the famous Naver Webtoon Manager Kim, the series follows an ordinary bank manager who unleashes his lethal black-ops skills when his teenage daughter suddenly disappears. But what makes the show an absolute joy to watch isn't just the high-octane martial arts—it is the unbeatable chemistry of the main cast.
Whether you are trying to place where you have seen these actors before or want a deeper look at your favorite characters, here is the complete breakdown of who is who in Agent Kim Reactivated!
1. So Ji-sub as Kim Do-hyeon (Agent 66)
The Character: To his coworkers at Sangsaeng Savings Bank, Mr. Kim is just a quiet, unassuming middle-aged account manager who takes awkward office photos and worries about his daughter’s tuition. Behind those glasses, however, lies Agent 66—a legendary former top-tier operative once feared across covert military units. When his daughter Min-ji is kidnapped by an underground syndicate, Mr. Kim trades his briefcase for tactical gear.
The Actor: K-drama veteran So Ji-sub brings incredible gravity and physical presence to the role. Known for iconic hits like Master's Sun, Oh My Venus, and Terius Behind Me, So Ji-sub flawlessly transitions between a soft-spoken father and an unstoppable combat machine.
2. Choi Dae-hoon as Seong Han-soo
The Character: Seong Han-soo is a former special forces martial artist who now struggles with everyday domestic life and raising a rebellious teenage son. Despite his calm, disciplined demeanor, Han-soo possesses deadly taekwondo and hand-to-hand combat skills. Driven by fatherly empathy, he allies with Mr. Kim to tear through the criminal underworld.
The Actor: Choi Dae-hoon is one of Korean television's most versatile scene-stealers. You might recognize him from his standout performances in Extraordinary Attorney Woo, One Dollar Lawyer, or Beyond Evil. In Agent Kim Reactivated, he brings both intense action prowess and subtle comic relief.
3. Yoon Kyung-ho as Park Jin-cheol
The Character: Wearing a bright yellow traffic safety vest and serving as a neighborhood volunteer, Park Jin-cheol looks like the friendliest dad on the block. In reality, he is a former elite operative from the legendary Cheonsan unit. Protective of his own family to a fault, Jin-cheol joins the rescue mission without a second thought, wielding heavy-hitting brawling techniques.
The Actor: Yoon Kyung-ho is a fan favorite across Korean cinema and television, with memorable roles in Itaewon Class, Vincenzo, and The Sound of Magic. His natural warmth mixed with formidable physical screen presence makes him the perfect fit for the muscle of the dad trio.
4. Son Na-eun as Jung Sang-a
The Character: Posing as an innocent junior employee at the bank, Sang-a is secretly an undercover agent assigned by the Special Missions Directorate to monitor Agent 66's civilian life. As Mr. Kim’s rescue mission escalates, Sang-a finds herself torn between strictly following her handler’s orders and helping a desperate father save his child.
The Actor: Former Apink member Son Na-eun continues to prove her acting range following major roles in Agency and Ghost Doctor. She gives Sang-a a sharp, calculating edge that balances out the raw brute force of the core trio.
Why This Cast Works So Well
What sets Agent Kim Reactivated apart from typical revenge thrillers is its heart. The show doesn't rely solely on gunfights and martial arts choreography; it grounds the action in genuine paternal love and mid-life camaraderie. Watching three veteran actors play middle-aged dads who complain about back pain one minute and dismantle an armed syndicate the next gives the series a unique flavor that fans cannot get enough of.
Join the Discussion!
Who is your favorite character in the Agent Kim Reactivated dad trio? Did you prefer the webtoon version or the live-action Netflix adaptation? Drop a comment below and let’s talk K-dramas!
