K-pop idols moonlighting as leading men is nothing new, but ZEROBASEONE‘s Kim Ji Woong just took a bigger swing than most. The idol-actor has been confirmed to headline the upcoming thriller drama Siren (working title), and fans are already buzzing about this genre-driven career move.
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ZEROBASEONE: The Confirmation
On September 4, JTBC Entertainment News first reported Kim Ji Woong’s casting, with filming set to begin soon. His agency, Nest Management, quickly confirmed the news, simply stating that he will indeed star as the lead in Siren. Short, sweet, and straight to the point — exactly how idol agencies like to drop big news.

What Is Siren About?
The story centers on a third-generation chaebol heir who also attends an academy, teaming up with an ace researcher from a modest background. Their contrasting worlds collide as they work together to crack a series of mysterious cases — a classic odd-couple setup with high stakes.
| Detail | Information |
|---|---|
| Lead Actor | Kim Ji Woong (ZEROBASEONE) |
| Character | Do Yoon, chaebol heir & academy student |
| Director | Oh Ki Hwan (The Defects) |
| Format | Film + mid-form + short-form content |
| Genre | Thriller / Action-drama |
| Status | Pre-production, casting ongoing |
A Bold Format Choice
What makes Siren stand out is its multi-format structure — spanning a full film, mid-length episodes, and short-form content, all built around the same investigative storyline. It’s a format increasingly popular in Korean entertainment as studios experiment with how audiences consume content across platforms.
Why This Role Matters for Kim Ji Woong
Landing a lead in a genre-driven thriller is a meaningful step for any idol-actor, letting Kim Ji Woong showcase range beyond his work with ZEROBASEONE. Director Oh Ki Hwan’s track record with character-focused storytelling only adds to the anticipation around how this unlikely-partnership drama will unfold on screen.
Want more K-drama casting news and idol updates? Browse the latest entertainment coverage on TechnoSports for quick, reliable updates.
What’s Next?
Casting for the remaining principal roles is still underway, and filming is expected to kick off shortly after. No official release date has been announced yet, but given the momentum, expect more details soon.
FAQs
Q1. What role will Kim Ji Woong play in Siren?
He’ll play Do Yoon, a third-generation chaebol heir and academy student.
Q2. Who is directing Siren?
Oh Ki Hwan, previously known for directing ENA’s The Defects.





