Kim Ji-won Unleashes a Dangerous New Side in “Doctor X”: First Trailer Breakdown
Kim Ji-won is back, but this time she is not here to fall in love.
The actress is taking on one of her most unusual roles yet in the upcoming SBS drama Doctor X: The Age of the White Mafia. The first teaser introduces her as Gye Soo-jung, a genius surgeon who seems almost impossible to intimidate.
With her black leather coat, sharp attitude, and fearless approach to surgery, Gye Soo-jung looks very different from the characters fans have seen Kim Ji-won play before. And judging by the first trailer, she may be one of the most dangerous doctors to enter a K-drama hospital.
Here is everything the first Doctor X trailer reveals about Kim Ji-won's new character and the mysterious world surrounding her.
What Is Doctor X About?
Doctor X: The Age of the White Mafia is an upcoming SBS medical noir drama based on the popular Japanese Doctor X franchise.
The story follows Gye Soo-jung, a highly skilled surgeon brought to Guseo University Hospital through a doctor staffing agency. Unlike the doctors already working there, she has little interest in playing by the hospital's power games.
Instead, she relies almost entirely on her surgical ability.
Guseo University Hospital is filled with corruption, money, and complicated power struggles. The people wearing white coats may be doctors, but the drama suggests that the real battle inside the hospital has little to do with medicine.
Enter Gye Soo-jung.
SBS has described Doctor X as its first medical noir, blending the hospital setting with the revenge and catharsis seen in dramas such as Taxi Driver and The Fiery Priest.
Kim Ji-won Plays a Genius Surgeon Who Does Not Fear Anyone
The first Doctor X teaser wastes very little time introducing Gye Soo-jung's personality.
She appears in a surgical mask and confidently announces that she will operate. Her attitude makes it clear that she has complete faith in her abilities.
Later, she gives a patient an almost unbelievable choice, asking whether they want to die in a month or 100 years.
It is an extreme line, but that is exactly what makes Gye Soo-jung so interesting.
She does not appear to be the kind of doctor who comforts people with gentle words. Instead, she seems brutally honest because she knows what she can do once she gets into the operating room.
Her confidence is so overwhelming that intern Park Tae-kyung, played by Kim Woo-seok, compares her to either a god or a monster.
That line may be one of the biggest clues about what makes Doctor X different from a typical medical K-drama.
Doctor X Looks Nothing Like a Typical Medical K-Drama
The first trailer makes one thing very clear: Doctor X is not trying to be another hospital romance.
There are no obvious romantic moments in the teaser. Instead, viewers get surgery, corruption, hospital politics, and a female lead who seems perfectly comfortable standing against an entire system.
That could be the drama's biggest selling point.
Medical K-dramas often focus on friendships, romance, emotional patient stories, and the pressure of working in a hospital. Doctor X appears to be taking the setting in a much darker direction.
Gye Soo-jung is not simply trying to become a better doctor. She is walking into a corrupt environment and challenging the people controlling it.
And she seems completely prepared for the consequences.
When Will Doctor X Premiere?
Doctor X: The Age of the White Mafia will premiere on SBS on October 9, 2026.
The drama will air on Fridays and Saturdays at 9:50 p.m. KST.
Kim Ji-won will lead the cast alongside Lee Jung-eun, Son Hyun-joo, and Kim Woo-seok. The series is directed by Lee Jung-rim, who previously worked on dramas including VIP and Revenant, and written by Pyeon Seung-geun.
With its medical noir setting and revenge-driven story, Doctor X is shaping up to be a very different kind of K-drama for Kim Ji-won!
Final Thoughts
Kim Ji-won's new character already looks like a major departure from the softer and more romantic roles that many viewers associate with the actress.
Gye Soo-jung is arrogant, fearless, and almost frighteningly confident in her surgical abilities. But underneath that attitude is a doctor who appears determined to prove that saving lives should matter more than money, power, or reputation.
The first trailer only gives us a small glimpse of the conflict, but the combination of Kim Ji-won's transformation, the corrupt hospital, and the mysterious White Mafia makes Doctor X one of the more unusual upcoming K-dramas to watch this October.
Would you watch Kim Ji-won in this darker medical role? Let us know what you think about the first Doctor X trailer!
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