K-drama stars often become closely associated with a particular type of character — the charming romantic lead, the mysterious heartthrob or the emotionally complicated hero.
But some of Korea’s biggest actors have refused to stay in one lane.
From Byeon Woo-seok moving from high-profile romance into action fantasy to Lee Min-ho taking on darker and more morally complicated characters, these stars have repeatedly challenged the images that first made them famous.
Here are eight K-drama actors whose career choices prove that audiences should never assume they know what comes next.
1. Byeon Woo-seok — From romance to action fantasy
Byeon Woo-seok became a household name after Lovely Runner, where he played singer Ryu Sun-jae opposite Kim Hye-yoon.
He followed that breakthrough with Perfect Crown, another major romantic role alongside IU.
But his next major project represents a dramatic departure.
The actor is set to lead Netflix’s live-action adaptation of ** Solo Leveling ** as Sung Jin-woo, a character who begins as an E-rank Hunter before gaining extraordinary abilities.
Instead of time-slip romance and royal intrigue, Byeon will enter a world filled with supernatural powers, monsters and high-stakes action.
It could become one of the biggest genre changes of his career.
2. Choi Woo-shik — From dark thrillers to romantic leads
Choi Woo-shik has shown perhaps one of the most flexible ranges among his generation.
In Bong Joon-ho’s Oscar-winning Parasite, he played Kim Ki-woo, a struggling young man caught in an increasingly dangerous scheme.
He also appeared in darker projects including Train to Busan and The Witch: Part 1. The Subversion.
Then came Our Beloved Summer.
As Choi Ung, Woo-shik traded the tension and darkness of his earlier work for a gentle, emotionally vulnerable romantic lead opposite Kim Da-mi.
The success of the series helped establish another side of the actor and opened the door to additional romance projects.
3. Jung Hae-in — From heartthrob to gritty action drama
Jung Hae-in became widely recognized as a romantic leading man through dramas such as Something in the Rain and One Spring Night.
His image changed dramatically with Netflix’s D.P.
As Private An Jun-ho, he entered the harsh world of military deserter investigations, delivering a performance far removed from his earlier romantic roles.
The series gave audiences a grittier version of Jung Hae-in and demonstrated that his appeal extended well beyond romance.
4. Lee Min-ho — From romantic hero to morally complex characters
Lee Min-ho’s early career made him synonymous with the classic K-drama leading man.
Boys Over Flowers transformed him into a major Hallyu star, while subsequent projects continued to showcase his romantic and heroic appeal.
But his later choices have become considerably more varied.
In Pachinko, Lee plays Koh Hansu, a wealthy and powerful businessman whose relationship with Sunja is morally complicated.
The role allowed him to move away from the straightforward romantic heroes associated with some of his earlier work.
His performance showed that Lee Min-ho was willing to use his global star power for characters audiences might find considerably harder to embrace.
5. Gong Yoo — From romantic fantasy to psychological darkness
Gong Yoo’s career has repeatedly moved between genres.
While Coffee Prince and Goblin established him as one of Korea’s most recognizable romantic stars, he has also taken on dramatically darker material.
His work in Squid Game introduced him to a global audience in a very different context, while his film career has included thrillers and psychologically intense stories.
That willingness to move between romance, fantasy and darker projects has helped prevent Gong Yoo from being confined to one screen persona.
6. Song Joong-ki — From romantic leads to revenge and crime
Song Joong-ki became globally famous through romantic dramas including Descendants of the Sun and The Innocent Man.
But he later embraced considerably darker and more complicated stories.
In Vincenzo, he played a Korean-Italian lawyer connected to the mafia who returns to Korea and becomes involved in a battle against powerful corporate interests.
Then came Reborn Rich, where he played a character caught in a story of corporate power, betrayal and revenge.
The shift demonstrated how effectively Song could move from traditional romance into morally ambiguous territory.
7. Park Seo-joon — From rom-com favorite to action and thriller territory
Park Seo-joon built a strong reputation through romantic comedies such as What’s Wrong with Secretary Kim and Fight for My Way.
But his film and television choices have increasingly expanded beyond that formula.
He has taken on action-oriented projects and darker stories, while his international profile has also grown through his appearance in Marvel’s The Marvels.
The actor’s career illustrates how Korean stars are increasingly moving between domestic romance, action, fantasy and international productions.
8. Kim Soo-hyun — From romance to psychological intensity
Kim Soo-hyun has played some of the most recognizable romantic leads in Korean television, including his role in My Love from the Star.
But his career has also repeatedly moved into more emotionally demanding territory.
Projects such as It’s Okay to Not Be Okay allowed him to explore heavier psychological themes, while One Ordinary Day placed him in a much darker crime-oriented story.
Rather than relying solely on the image of the polished K-drama heartthrob, Kim has continued to take roles that require a substantially different performance style.
Why genre-switching matters for K-drama stars
The biggest K-drama stars increasingly have something to prove beyond simply being popular.
A successful genre switch can demonstrate range, attract a new audience and prevent an actor from becoming trapped by one particularly successful character type.
For Byeon Woo-seok, the move from romantic hits such as Lovely Runner and Perfect Crown to Solo Leveling could be especially significant.
For established stars such as Lee Min-ho, Jung Hae-in and Choi Woo-shik, earlier genre changes have already demonstrated how dramatically a familiar screen image can be transformed.
The bigger trend is clear: K-drama stars are increasingly willing to leave their comfort zones — and audiences are following them.
The next question is which familiar face will make the industry’s most unexpected transformation.
And with Byeon Woo-seok preparing to enter the world of Solo Leveling, one of the most talked-about genre switches may only be getting started.
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