Newcomer actress Seo Su-min, who is making her acting debut as So Ji Sub’s daughter in the hit SBS drama Agent Kim reactivatedis quickly becoming one of the rising stars in Korean entertainment. As the action-revenge series continues to see success, fans have begun revisiting Seo Su-min’s pre-debut content, including a 43-second YouTube video that has now amassed more than 3.28 million views.
Premieres June 26, SBS Agent Kim reactivated follows an ordinary father who becomes a deadly fighter to save his only daughter after she is kidnapped. The drama surpassed 15.7% ratings nationwide by episode 2, catapulting both the series and its young cast into the spotlight.
Seo Su-min made her official acting debut through the drama, playing Kim Min-ji, the daughter of Kim Do-hyeon (So Ji-sub). In the story, Min-ji becomes a victim of school violence before being kidnapped by a mysterious organization, an incident that forces her father to return to his dangerous past as an elite agent.

Before entering the acting industry, Seo Su-min attracted public attention as a YouTuber. Born in 2007, she uploaded a 43-second informal video titled “Take off my glasses and get comfortable with the camera” to his personal YouTube channel last year. The clip, filmed while riding on a moving bus, shows the teenager smiling and striking playful poses for the camera. Despite its simplicity, the video has surpassed 3.28 million views.
Even more notable, Seo Su-min’s YouTube channel only has two videos uploaded, but has attracted over 140,000 subscribers, highlighting her growing popularity even before her acting debut.
Following the viral attention surrounding her personal channel, Seo Su-min appeared on several beauty-related content programs, where she revealed that she studied acting. He also shared that he has received casting offers from many of South Korea’s major entertainment agencies, commonly referred to as “BIG3”.

However, Seo Su-min explained that she chose not to pursue an idol career. “I’m not sure about singing or dancing, so I decided to pursue acting, which had interested me for a long time.” After considering several offers, she ultimately signed with Y1 Entertainment to begin her acting career.
Get a major role in Agent Kim reactivated for her first TV project gave Seo Su-min an impressive launch into the industry. With the SBS drama continuing to register strong ratings and attract widespread attention, many viewers are now watching closely to see how the young actress’s career develops after such a successful debut.
Sources: Daum | Television reportage

