Every medical drama has a mask-wearing villain. Doctor X just pulled the mask off. New stills from the next episode show Jang Seung Jo’s “kindly surgeon” losing control in the emergency room, and Kim Ji Won’s Gye Soo Jung is the one who has to stop him.
Doctor X : Overview
| Detail | Info |
|---|---|
| Drama | Doctor X |
| Network | SBS |
| Genre | Medical noir, based on the hit Japanese series of the same name |
| Lead | Kim Ji Won as Gye Soo Jung, a genius surgeon |
| Rival | Jang Seung Jo as Na Dae Il |
| Also starring | Lee Jung Eun as Jang Hee Sook |
| Next episode | 23 October, 9:50 PM KST (about 6:20 PM IST) |
Where We Left Off Doctor X?
Na Dae Il arrived as a newcomer brought in to replace Gye Soo Jung in the operating room, and a tense rivalry grew between them. Then came the shock: while performing emergency surgery on one of his patients in his absence, Gye Soo Jung found Na Dae Il’s initials branded on the patient’s organ. The friendly surgeon is clearly something much darker.

What the New Stills Show?
In the stills, Na Dae Il lies on the emergency room floor in a patient’s gown, and the mask is gone. His glare is murderous and unsettling. Gye Soo Jung stays calm, studies the situation and steps in to subdue him personally. Jang Hee Sook, played by Lee Jung Eun, also arrives at the emergency room, looking furious.
Why It’s Worth Watching?
Gye Soo Jung proves what being a doctor means through skill alone, and her cool, unfazed reactions are a huge part of the show’s appeal. Pairing her with a genuinely frightening rival raises the stakes, so tonight’s confrontation could be a turning point. Learn more about Kim Ji Won and Jang Seung Jo on Viki.
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FAQs
When is the next Doctor X episode?
It airs on 23 October at 9:50 PM KST on SBS.
Who plays the villain in Doctor X?
Jang Seung Jo plays Na Dae Il, the surgeon whose friendly mask has now slipped.





