From the mind that gave us Train to Busan comes a new nightmare — and the freshly released stills from Colony prove this one is going to haunt cinemas in a very big way. Jun Ji Hyun, Ji Chang Wook, and one of the most stacked Korean film casts of 2026 are trapped inside a building. And whatever is inside with them has already evolved beyond anything they expected.

What Is Colony About?

Helmed by Train to Busan and Peninsula director Yeon Sang Ho, Colony follows the story that unfolds as a building is blockaded due to an unknown virus — as those infected evolve into unpredictable forms, threatening the survivors trapped inside.

Already generating serious pre-release buzz, the film has been officially invited to the Midnight Screenings section of the 79th Cannes International Film Festival — a stamp of prestige that signals this is no ordinary zombie horror film.

Colony Cast & Their Roles

Character	Actor	Role
Kwon Se Jung	Jun Ji Hyun	Survivor piecing together patterns of the infected
Choi Hyun Seok	Ji Chang Wook	Protective brother leading the group
Seo Young Cheol	Koo Kyo Hwan	The man responsible for the outbreak
Gong Seol Hee	Shin Hyun Been	Biotech researcher racing to find answers outside
Choi Hyun Hee	Kim Shin Rok	Ji Chang Wook’s sister; wheelchair-bound but composed
Han Kyu Seong	Go Soo	Selfless survivor protecting a frightened student

What the New Stills Reveal

Every image released tells a different piece of the story — and together, they paint a picture of escalating dread.

Jun Ji Hyun’s character is seen holding a phone and flashlight, staring intently with a desperate expression. The text “Turn down the light” visible on her phone raises chilling questions about who she is contacting and what patterns she may have uncovered about the infected.

Koo Kyo Hwan’s character — the man responsible for the outbreak — stands in direct opposition to the survivors, with a striking image of his reflection endlessly repeating in a mirror, deepening the mystery around his true intentions.

Ji Chang Wook is seen carrying his sister on his back while gripping a pole, leading the group with a palpable sense of urgency — determined to protect her at all costs.

Outside the building, biotech researcher Gong Seol Hee (Shin Hyun Been) is shown in protective gear investigating a lab, her determination suggesting she will stop at nothing to find answers.

And then comes the image that explains the title itself. A group of infected, drenched in blood, move in unison and stare in the same direction — instantly evoking the word “Colony.” On the rooftop, a heavily armed special forces unit enters in formation, underscoring just how severe the situation has become.

Release Date & What to Expect

Colony is set to hit theatres on May 21, 2026.

With Yeon Sang Ho’s track record of redefining the survival horror genre, a Cannes invitation under its belt, and a cast that reads like a K-cinema dream team, Colony is shaping up to be one of the most anticipated Korean films of the year.

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