With the first half of 2026 behind us, K-dramas have already delivered an exciting new wave of acting talent across everything from time-slip romances and supernatural thrillers to hard-hitting action series. Some are rising stars stepping into their first major leading roles, while others are familiar faces finding fresh global recognition. Here are six Korean actors and actresses enjoying some of the year’s biggest breakout moments so far

Heo Nam-jun

Photo: Instagram @namjun0609

Heo Nam-jun had been steadily gaining attention through supporting roles in dramas such as Your Honor and When the Phone Rings, but 2026 has officially turned him into a leading man. In the time-slip romance My Royal Nemesis, he stars opposite Lim Ji-yeon as Cha Se-gye, a guarded chaebol heir whose cool exterior gradually begins to soften. The role brings out his easygoing charm and has made him one of the year’s most exciting new romantic leads.

Kim Jae-won

Photo: Instagram @rlawodnjs_

Kim Jae-won has spent the past few years quietly standing out in dramas including Our Blues (2022), King the Land (2023) and Hierarchy (2024), but 2026 marks his biggest year yet. After revealing a more emotionally complex side in The Art of Sarah earlier this year, he stepped into full romantic-lead territory in Yumi’s Cells 3 (2026). As Shin Soon-rok, Yumi’s sincere editor and eventual love interest, Kim has won over viewers and firmly established himself as one of K-drama’s most promising next-generation heartthrobs.

Chae Won-bin

Photo: Instagram @w0nbeen

Chae Won-bin first earned major praise for her emotionally charged performance in Doubt, which won her Best New Actress at the 2025 Baeksang Arts Awards. This year, she has carried that momentum into a lighter and more mainstream leading role in Sold Out on You (2026). Starring opposite Ahn Hyo-seop as ambitious home-shopping host Dam Ye-jin, Chae brings plenty of warmth and comic energy to the countryside romance, proving she can move just as confidently between intense drama and feel-good rom-coms.

Jeon So-young

Photo: Instagram @soyngxo

Jeon So-young may be one of the freshest faces on this list, but she has already made a strong impression. Her performance in the legal thriller Honour earned her a 2026 Baeksang nomination for Best New Actress, before Netflix’s If Wishes Could Kill (2026) placed her firmly in the spotlight. As Yoo Se-ah, a student racing to break the curse of a deadly wish-granting app, Jeon grounds the supernatural thriller with urgency and vulnerability, marking her as an exciting new talent to watch.

Pyo Ji-hoon (P.O)

Photo: Instagram @pyojihoon_official

Better known to K-pop fans as P.O of Block B, Pyo Ji-hoon has steadily built a varied acting résumé over the years. His role in Netflix’s Teach You a Lesson (2026), however, has brought him a fresh wave of global attention. As Bong Geun-dae, the intelligent yet endearingly clumsy assistant director of the Educational Rights Protection Bureau, Pyo quickly wins viewers over with his natural comedic timing, particularly during the character’s memorable undercover missions.

Kim Mu-yeol

Photo: Instagram @m00ut

Kim Mu-yeol has worked across film, television and musical theatre for more than two decades, making him the most unconventional breakout on this list. Yet Netflix’s Teach You a Lesson (2026) has introduced the veteran actor to an even wider international audience. As Na Hwa-jin, a formidable agent sent to confront bullying and corruption in Korean schools, Kim commands the screen with physical intensity and controlled charisma, giving his already established career one of its biggest global surges yet.

Also see: 5 feel-good K-dramas to add to your summer watch list