Kim Ji Won is back on television after two years, and this time she is playing a surgeon who does not play by the rules. The first full trailer for Doctor X: Mafia in White arrived on Monday, September 21, 2026, giving fans their clearest look yet at her transformation into Gye Soo Jung, a brilliant and fearless doctor who takes on a hospital run by powerful people.
The trailer has already sparked excitement among K-drama fans worldwide, especially in India, where the show will be available to stream on Netflix from October 9, 2026. The series marks Kim Ji Won’s first drama since Queen of Tears in 2024.
What the Doctor X Trailer Shows
The trailer opens with Gye Soo Jung arriving at Guseo University Hospital through a doctor-placement agency. She is not there to make friends or climb the hospital ladder. She is there to operate, and she makes that clear from the start.
In one of the trailer’s most striking moments, she tells a patient: “Decide. Do you want to die in a month or in 100 years?” The line shows her blunt, uncompromising approach to medicine, which is very different from the gentle doctor characters often seen in medical dramas.
The trailer also shows her reciting the Hippocratic Oath, saying: “On my honor and of my own free will, I swear all of this as a doctor.” From there, the footage moves between intense operating-room scenes and darker moments, including a scene where she appears to be attacked.
Lee Jung Eun, who plays Jang Hee Sook, the head of the doctor-placement agency, describes Soo Jung in the trailer as “our agency’s top ace: surgeon Gye Soo Jung.” The trailer also labels her as “the most dangerous doctor” and asks: “Isn’t she…” leaving the question hanging.
The production team shared a statement about the main poster, saying: “This ‘Doctor Version’ main poster captures the presence of Gye Su-jeong, a dark hero genius doctor who instantly overwhelms the operating room.” The team also asked viewers to watch for “the birth of an unprecedented doctor who refuses to compromise with any framework.”
When Doctor X Premieres in Korea
Doctor X: Mafia in White will premiere on Friday, October 9, 2026, at 9:50 p.m. KST on SBS. The drama will air two episodes each week, on Fridays and Saturdays. The series has 12 episodes in total.
The show takes over the Friday-Saturday 9:50 p.m. time slot from Flex x Cop 2.
Where to Watch Doctor X in India and Worldwide
For viewers in India, Doctor X will be available to stream on Netflix starting October 9, 2026. Netflix will release the drama internationally on the same day as its Korean broadcast.
The same release applies to viewers in the United States, United Kingdom, Canada, Australia, and other global markets where Netflix is available. New episodes will arrive weekly on the platform, matching the Friday-Saturday broadcast schedule in Korea.
The 9:50 p.m. KST broadcast time translates to 6:20 p.m. IST in India, making it convenient for Indian viewers to watch new episodes the same evening they air in Korea.
Kim Ji Won Returns After Queen of Tears
Queen of Tears aired in 2024 and became one of the most-watched Korean dramas of that year. The show broke records and brought Kim Ji Won global attention. Her last drama appearance was in that series, making Doctor X her return to television after about two years.
This is also her second time playing a doctor. She previously played Dr. Yoon Myungjoo in Descendants of the Sun in 2016. The new role is a much darker character compared to her earlier work.
GQ India reported that the Hallyu actress “will make her K-drama comeback in Doctor X” with its premiere set for October 9, 2026.
The Full Cast of Doctor X
Kim Ji Won leads the cast as Gye Soo Jung, the genius surgeon known as “Doctor X” and the “mad dog of the operating room.”
Lee Jung Eun, known for her role in Parasite, plays Jang Hee Sook, the head of the doctor-placement agency that brings Soo Jung to the hospital. Jang Hee Sook is described as a clever and money-focused character who adds tension to the story.
Son Hyun Joo plays Bu Seung Kwon, the director of Guseo University Hospital. He is one of the central figures in the hospital’s power structure.
Kim Woo Seok plays Park Tae Kyung, an intern from a wealthy background who gets a close look at Soo Jung’s surgical skills. His mentor-student dynamic with Kim Ji Won’s character adds another layer to the story.
The supporting cast includes Lee Jin Hee, Kim Young Min, Lee Sung Wook, Kwon Seung Woo, Heo Jun Seok, Choi Deok Moon, Kim Jung Young, Kim Young Ah, and Choi Kwang Il.
Lee Jung Rim directed the series, and Pyeon Seung Geun wrote the script. The drama is produced by Studio S, Studio Dragon, and HighZium Studio.
What Doctor X Is About
Doctor X: Mafia in White is a Korean adaptation of the Japanese medical drama Doctor-X: Surgeon Michiko Daimon, which first aired in 2012. The Korean version takes the core idea of a surgeon with unmatched skills and places her in a hospital where power, money, and influence matter as much as medicine.
Gye Soo Jung joins Guseo University Hospital through a doctor-placement agency. The hospital is controlled by what the show calls the “white mafia” , a group of powerful figures who put profit and status above patient care. Soo Jung refuses to follow their rules. She relies only on her surgical skills to challenge the system.
SBS describes the series as a medical noir, a mix of hospital drama and darker crime storytelling. It is the first medical genre series in SBS’s “cider universe,” a line of shows known for high-energy, satisfying stories that includes Taxi Driver, The Fiery Priest, and The Judge from Hell.
Fan Reactions to the Trailer
The trailer and teaser have generated discussion on social media. Fans have pointed out details like Kim Ji Won’s character wearing loafers instead of heels, a small choice that fits her practical, no-nonsense character.
One fan comment read: “Finally!!! The long wait is over for Kim Ji Won comeback drama Doctor X. It’s going to be interesting.” Another fan expressed hope that the show would not turn into a romance, writing: “I do hope this does not end up as some form of a romantic picture. That would be terrible mistake and would hurt the career of Kim Ji Won.”
The teaser released on September 7 also drew attention for Kim Ji Won’s short haircut and her character’s direct way of speaking. Fans described her look as “cool” and praised the darker direction of the character.
Netflix Korea shared the trailer on social media, confirming the October 9 release date for global audiences.
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What the Main Poster Revealed
SBS released the “Doctor Version” main poster on September 18, 2026. The poster shows Kim Ji Won staring directly at the camera with a serious expression, wearing a white doctor’s gown covered in blood stains. The contrast between the clean white coat and the blood was designed to show the intense and dangerous nature of her character.
The poster followed the first teaser released on September 7 and the second teaser released on September 16.
Doctor X: Mafia in White will premiere on October 9, 2026, on SBS in Korea and on Netflix worldwide, including India, the United States, the United Kingdom, Canada, and Australia.
Also Read: Kim Ji Won Returns as Genius Surgeon in Medical Noir Drama ‘Doctor X’ – Release Date, Plot, Cast
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