Lee Seo-jin and Go Ah-sung Step Into Theater for the Very First Time

Korean audiences have watched Lee Seo-jin and Go Ah-sung deliver some of the most memorable performances in the country's recent screen history. But for all the dramas, films, and variety appearances that have defined their careers, neither of them has ever stood on a theater stage. Until now.

On April 16, LG Arts Center released the first rehearsal photos from its upcoming production of Anton Chekhov's "Uncle Vanya" (바냐 삼촌), starring both Lee Seo-jin and Go Ah-sung in their stage acting debuts. The images show two screen veterans fully immersed in their roles, working through a production that promises to be one of Seoul's most anticipated theatrical events of the year.

For fans of either actor, the announcement carries genuine weight. Theater debuts from established screen stars are relatively rare events in Korea, and when they do happen, the pairing of a celebrated director with Chekhov's most enduring work makes the occasion feel even more significant.

Chekhov in the 21st Century

"Uncle Vanya" was first performed in Russia in 1899 and has since become one of the most-produced plays in world theater. Chekhov's genius lay in what he didn't say — the play is built on accumulated disappointment, missed connections, and the slow erosion of dreams that have quietly become impossible. It is not a drama of explosions or sudden revelations, but of people realizing, at different speeds, that the life they imagined isn't coming.

For a production hoping to translate that weight for a modern Korean audience, the creative choices matter enormously. LG Arts Center has entrusted the adaptation and direction to Son Sang-gyu, a director whose work on "The Lives of Others" (타인의 삶) in 2024 drew widespread critical acclaim and established him as one of the most compelling voices in Korean theater. "Uncle Vanya" marks his first large-theater directorial work — a significant step up in scale from the productions that built his reputation.

This is also the third Chekhov-adjacent production that LG Arts Center has mounted in recent years, following "The Cherry Orchard" (벚꽃동산) in 2024 and "Hedda Gabler" (헤다 가블러) in 2025. The center has developed a clear artistic identity around classical European drama reinterpreted for contemporary Korean sensibilities — and "Uncle Vanya" continues that trajectory with the highest-profile cast the series has yet assembled.

Two Screen Icons Take the Stage

Lee Seo-jin takes on the role of Vanya — the play's central figure and its most emotionally complex portrait. Vanya has spent decades managing his late brother-in-law's estate, sacrificing his own ambitions and desires in service of a man he has come to quietly despise. He is cynical, self-aware about his own failure, and yet still capable of genuine feeling — a combination that makes the character both deeply sympathetic and occasionally maddening.

In the rehearsal photos, Lee Seo-jin brings a controlled intensity to the role that the production team has described as deliberately restrained. The goal, according to advance materials, is to let the character's frustration accumulate beneath the surface rather than erupt immediately — which mirrors how Chekhov himself conceived the role. This kind of interior performance is demanding in a different way than film acting, where close-up cameras can capture the smallest shifts in expression. On stage, everything must carry further.

Go Ah-sung plays Sonya, Vanya's niece and one of the play's quiet moral centers. Sonya is a young woman who has watched her own hopes — romantic, familial, personal — gradually diminish, yet who somehow maintains a fierce, unsentimental hope for the future. It is one of theater's most beautifully written roles precisely because it asks the actress to hold genuine warmth and genuine grief simultaneously, without letting either cancel the other out.

The preview materials suggest Go Ah-sung has found a version of Sonya that is "steady yet deeply layered" — not the tragic romantic that the role can sometimes become in lesser productions, but a woman of real interior strength who simply refuses to stop caring. Her film background, which includes internationally acclaimed productions like Bong Joon-ho's "Snowpiercer" and "The Host," has given her a command of subtle emotional register that should translate powerfully to the stage.

A Cast Built for the Occasion

While the star power of Lee Seo-jin and Go Ah-sung will draw considerable attention, the production's ensemble is arguably its most compelling feature. LG Arts Center has assembled a group of theater veterans whose combined experience with classical drama gives the production a foundation that few shows of this kind can match.

Kim Soo-hyun — the theater actor, distinct from the film star of the same name — has previously starred in both "Richard II" and "Hamlet" at major Korean venues, earning a reputation for work of rare depth and technical precision. Jo Young-gyu is a recipient of the 61st Dong-A Theater Award for acting. Yang Jong-wook, a core member of the respected theater collective 양손프로젝트, brings years of ensemble experience to the production. They are joined by Yi Hwa-jeong, Min Yun-jae, and Byeon Yun-jeong — a complete cast of eight actors, all performing without understudy doubles.

The creative team extends this level of craft throughout. Set design is handled by Kim Jong-seok, lighting by Kim Hyeong-yeon, and sound by the artist known as Kayip — all collaborators who have worked previously with Son Sang-gyu and who have helped define the distinctive visual and atmospheric qualities of his productions. Costume design is by Kim Hwan.

What the Debut Means

Theater debuts by established screen actors in Korea often generate a specific kind of attention — part curiosity, part genuine excitement about whether screen performances translate to the demands of live theater. The two forms are technically distinct in ways that go beyond the obvious absence of camera editing. Stage acting requires a different relationship with time, with the audience, with the body as an expressive instrument rather than simply a vehicle for captured expression.

For both Lee Seo-jin and Go Ah-sung, the choice of "Uncle Vanya" as a debut vehicle is itself revealing. This is not an accessible crowd-pleaser or a musical designed to ease a screen actor into the medium. It is one of the most psychologically demanding plays in the classical repertoire, staged in a major venue by a director with a clear aesthetic identity. The message from both performers seems to be that if they're going to step onto a stage, they want to do it properly.

LG Arts Center's decision to cast two established screen names in their marquee Chekhov production reflects a growing trend of Korean theatrical institutions reaching across the screen–stage divide to bring in talent whose public profiles can expand the audience for serious drama. The strategy has worked at other institutions — and the early response to this production's casting announcement suggests it is likely to work here as well.

Dates and What to Expect

"Uncle Vanya" runs from May 7 through May 31, 2026 at LG Arts Center Seoul's LG SIGNATURE Hall — the center's largest and most technically sophisticated performance space. The production is expected to run approximately two hours and thirty minutes, though exact running time will be confirmed closer to the opening.

Based on the rehearsal footage released on April 16, the production has a spare, contemporary visual aesthetic that strips away period costuming in favor of something that makes Chekhov's observations feel immediate and unmediated. The blocking suggests a production that trusts its actors and its text rather than relying on elaborate staging to generate impact.

For anyone who has followed Lee Seo-jin's career from his early dramatic work through his more recent variety appearances, or who has watched Go Ah-sung bring quiet authority to some of Korean cinema's most demanding roles, the prospect of seeing them in live performance — in Chekhov, directed by Son Sang-gyu — is hard to describe as anything other than genuinely exciting.

The stage has been waiting for them. It sounds like they're finally ready.