Doctor X: Age of the White Mafia Korean Drama 2026 Wiki: Cast, Story, Episodes & More
Doctor X: Age of the White Mafia, also listed by Netflix as Doctor X: Mafia in White, is an upcoming 2026 Korean medical noir drama starring Kim Ji-won, Lee Jung-eun, Son Hyun-joo, and Kim Woo-seok.
The series follows Gye Su-jeong, a brilliant surgeon who enters a hospital controlled by power, money, hierarchy, and corruption. Unlike doctors who are willing to follow the hospital’s established rules, Su-jeong relies almost entirely on her surgical ability.
Known as the “mad dog of the operating room,” she refuses to compromise when it comes to saving patients. Her arrival at Guseo University Hospital puts her directly against the people who have built a powerful system inside the institution.
The Korean drama is based on the popular Japanese medical series Doctor-X: Surgeon Michiko Daimon, but the story has been adapted into a Korean setting with new characters and a darker medical-noir atmosphere.
Doctor X: Age of the White Mafia Quick Details
Drama Information
Drama Title: Doctor X: Age of the White Mafia
Netflix Title: Doctor X: Mafia in White
Korean Title: 닥터X: 하얀 마피아의 시대
Year: 2026
Genre: Medical, Noir, Drama, Mystery, Thriller
Episodes: 12
Premiere Date: October 9, 2026
Original Network: SBS
Streaming Platform: Netflix
Main Cast: Kim Ji-won, Lee Jung-eun, Son Hyun-joo, Kim Woo-seok
Director: Lee Jung-rim
Writer: Pyeon Seong-geun
Production Companies: Studio S, Studio Dragon, HighZium Studio
Country: South Korea
Language: Korean
Netflix describes the series as a Korean medical drama about an enigmatic and brilliant surgeon arriving at a hospital dominated by ego and corruption.
Doctor X Release Date
Doctor X: Mafia in White premieres on October 9, 2026.
The drama will air on SBS every Friday and Saturday at 9:50 p.m. KST.
The series is scheduled for 12 episodes, with the final episode expected on November 14, 2026. Netflix is also carrying the series internationally.
Doctor X Story
The story takes place inside Guseo University Hospital, an institution where medical skill is not always the most important thing.
Power, money, professional connections, reputation, and hospital politics have created a complicated hierarchy.
Into this environment comes Gye Su-jeong, a highly skilled surgeon who has little interest in playing by those rules.
Su-jeong is not the kind of doctor who spends time worrying about hospital politics. Her primary concern is the patient on the operating table.
Her extraordinary surgical ability has earned her the nickname “the mad dog of the operating room.”
She is brought into the hospital through Jang Hee-suk’s doctor staffing agency to fill a surgical vacancy.
Her arrival quickly creates tension.
The hospital’s existing power structure is not prepared for a surgeon who refuses to obey people simply because they have more authority or influence.
Su-jeong begins challenging the absurdities and corruption around her through the one thing she trusts most: her surgical ability.
The story therefore becomes more than a traditional medical drama.
It is also a battle between an individual doctor and an established system.
Gye Su-jeong Character
Kim Ji-won as Gye Su-jeong
Kim Ji-won plays the central character Gye Su-jeong.
Su-jeong is a genius surgeon with extraordinary confidence in her medical abilities.
She is often described as the “mad dog of the operating room” because of her uncompromising approach to surgery.
She does not appear interested in gaining popularity within the hospital.
Instead, she wants to prove what being a doctor actually means through her actions.
When she encounters powerful people who put politics, money, or status ahead of patients, Su-jeong refuses to quietly accept the situation.
This makes her both an outsider and a threat to the hospital’s established hierarchy.
Netflix describes her as an enigmatic but brilliant surgeon who takes on seemingly impossible cases while facing fierce opposition.
Jang Hee-suk Character
Lee Jung-eun as Jang Hee-suk
Lee Jung-eun plays Jang Hee-suk, the head of the physician staffing agency connected to Su-jeong.
Hee-suk has a very different personality from Su-jeong.
While Su-jeong is focused primarily on medicine and surgery, Hee-suk is much more interested in the business side of the medical world.
She is described as someone who understands how to use her image and relationships strategically.
Her agency becomes an important link between Su-jeong and the hospitals where she works.
Bu Seung-gwon Character
Son Hyun-joo as Bu Seung-gwon
Son Hyun-joo plays Bu Seung-gwon, the director of Guseo University Hospital.
Seung-gwon has the difficult responsibility of running a hospital affected by internal problems and power struggles.
He is therefore placed in a complicated position when Su-jeong arrives.
On one side is the hospital’s existing hierarchy.
On the other is a surgeon whose extraordinary abilities could help the institution but whose personality threatens the established order.
His relationship with Su-jeong becomes one of the important conflicts in the story.
Park Tae-kyung Character
Kim Woo-seok as Park Tae-kyung
Kim Woo-seok plays Park Tae-kyung, an intern at Guseo University Hospital.
Tae-kyung comes from a privileged background, but his experience with Su-jeong forces him to look at medicine differently.
His relationship with the unconventional surgeon becomes an important part of his development.
Instead of simply following the hospital hierarchy, Tae-kyung begins seeing what it means to become a doctor based on skill and responsibility.
Doctor X Main Cast
Kim Ji-won
Kim Ji-won plays Gye Su-jeong, the genius surgeon at the center of the drama.
Lee Jung-eun
Lee Jung-eun plays Jang Hee-suk, the head of the physician staffing agency.
Son Hyun-joo
Son Hyun-joo plays Bu Seung-gwon, director of Guseo University Hospital.
Kim Woo-seok
Kim Woo-seok plays Park Tae-kyung, a privileged intern who becomes connected to Su-jeong.
Doctor X Supporting Cast
The drama also features a large supporting cast connected to the hospital.
Lee Sung-wook as Bae Heung-gon
Bae Heung-gon is a surgical specialist at Guseo University Hospital.
Lee Jin-hee as Cho Won-jin
Cho Won-jin is another member of the hospital’s medical environment.
Kim Young-min as Do Yun-sik
Do Yun-sik is part of the hospital’s larger power structure.
Kim Young-ah as Lee Sun-ae
Lee Sun-ae is another supporting character connected to the hospital story.
Kwon Seung-woo as Ma Seong-gyu
Ma Seong-gyu is part of the supporting hospital cast.
Kang Hak-soo as Professor Hwang
Professor Hwang is another medical figure in the hospital storyline.
The current cast listings also include Heo Jun-seok, Choi Deok-moon, Kim Jung-young, Choi Kwang-il, and Kim Jong-goo among the supporting performers.
Doctor X Hospital Setting
Guseo University Hospital is more than simply the location where the medical cases take place.
The hospital represents the larger system that Su-jeong is fighting against.
Its hierarchy is built around people with different levels of authority, influence, money, and professional connections.
Su-jeong’s arrival threatens that balance.
Instead of quietly becoming another member of the hospital system, she challenges the way things operate.
This gives the series its medical-noir identity.
What Does “White Mafia” Mean?
The phrase “White Mafia” refers to the powerful group inside the medical establishment.
The white coat normally represents healing, trust, and professional responsibility.
In this drama, however, the idea is turned into something darker.
The hospital’s powerful figures are compared to a mafia because their influence and internal relationships can determine who receives opportunities, who gains power, and how the institution operates.
Su-jeong becomes the outsider who refuses to participate in that system.
Doctor X Medical Cases
Medical cases are expected to be an important part of the series.
Su-jeong is known for taking on difficult operations that other doctors may find extremely challenging.
Her approach is different from the hospital’s political structure.
When she enters the operating room, professional hierarchy becomes less important than the actual medical problem.
Her confidence comes from her surgical skill.
The contrast between difficult operations and hospital politics forms one of the central ideas of the drama.
Doctor X Medical Noir Style
Unlike a conventional warm-hearted hospital drama, Doctor X: Mafia in White uses a darker style.
The series combines:
- Medical drama
- Mystery
- Thriller
- Noir
- Workplace conflict
- Hospital politics
- Character drama
- Social issues
Netflix categorizes the series as a Korean medical TV drama and specifically highlights corruption and social issues as part of its identity.
Doctor X Episode Guide
The Korean drama is planned for 12 episodes.
Because the series has not completed its broadcast yet, detailed episode plots should not be invented. The currently listed schedule is as follows.
Episode 1 — October 9, 2026
The opening episode introduces Gye Su-jeong and the world of Guseo University Hospital.
Su-jeong’s extraordinary surgical abilities and her refusal to follow the hospital’s established power structure begin creating conflict.
Episode 2 — October 10, 2026
Su-jeong continues adjusting to her new environment while her unconventional methods attract attention inside the hospital.
Episode 3 — October 16, 2026
The medical and institutional conflicts surrounding Su-jeong continue to develop.
Episode 4 — October 17, 2026
The relationships between Su-jeong, the hospital leadership, and the younger doctors become increasingly important.
Episode 5 — October 23, 2026
A new stage of the hospital conflict develops as Su-jeong continues relying on her medical abilities rather than political influence.
Episode 6 — October 24, 2026
The pressure surrounding Su-jeong and the hospital’s existing system continues to grow.
Episode 7 — October 30, 2026
The drama moves further into its medical-noir storyline as the characters face new challenges.
Episode 8 — October 31, 2026
The hospital’s internal relationships and conflicts continue developing.
Episode 9 — November 6, 2026
The later part of the story begins bringing the medical and institutional conflicts closer together.
Episode 10 — November 7, 2026
Su-jeong continues confronting problems created by the hospital’s established hierarchy.
Episode 11 — November 13, 2026
The story approaches its final stage, with the central hospital conflict becoming increasingly important.
Episode 12 — November 14, 2026
The finale is scheduled to conclude the first season and bring the major medical and institutional conflicts toward a resolution.
Note: Official detailed episode titles and full plot summaries are not yet available for every episode, so this guide intentionally avoids fabricated spoilers.
Doctor X Themes
Medical Skill vs Power
One of the central ideas is the difference between actual medical ability and institutional authority.
Su-jeong believes a doctor should be judged by what happens in the operating room rather than by their position within the hospital hierarchy.
Corruption
The drama explores a hospital where corruption and power influence the medical environment.
Professional Ethics
Su-jeong’s decisions repeatedly raise questions about what doctors owe to their patients and how far they should go to protect them.
Individual vs System
The protagonist is essentially an outsider confronting a much larger institution.
Money and Medicine
The drama also examines the tension between medical care and the financial interests surrounding hospitals.
Is Doctor X Based on a Japanese Drama?
Yes.
Doctor X: Age of the White Mafia is based on the Japanese series Doctor-X: Surgeon Michiko Daimon.
The original series follows genius surgeon Michiko Daimon, a character known for her exceptional surgical skills and refusal to conform to hospital politics.
The Korean version adapts the basic concept into a Korean medical-noir setting and replaces the original protagonist with Gye Su-jeong, played by Kim Ji-won.
Doctor X Korean Version vs Japanese Original
The Korean series keeps the basic idea of a highly skilled surgeon confronting hospital politics but gives the story a new Korean setting.
The main differences include:
- Korean hospital setting
- New protagonist name
- New supporting characters
- Korean production team
- Korean social and institutional environment
- Darker medical-noir presentation
Viewers do not necessarily need to watch the Japanese original before starting the Korean version.
Who Is the Director of Doctor X?
Lee Jung-rim directs the Korean adaptation.
Lee Jung-rim has previously worked on dramas including VIP, Revenant, and As You Stood By.
Her direction brings the project toward the darker medical-noir style promoted by SBS.
Who Is the Writer of Doctor X?
The drama is written by Pyeon Seong-geun.
The script combines the medical setting with corruption, institutional conflict, mystery, and the story of an unconventional surgeon.
Where to Watch Doctor X: Mafia in White?
Doctor X: Mafia in White is available internationally through Netflix, while the original Korean broadcast is on SBS.
Netflix’s official listing confirms the title as Doctor X: Mafia in White and lists Kim Ji-won, Lee Jung-eun, Son Hyun-joo, and Kim Woo-seok among the cast.
For viewers in India, current listings indicate that the series will be available on Netflix from October 9, 2026 alongside its Korean broadcast.
Is Doctor X a Netflix Original?
Netflix is the international streaming home for the Korean drama, but the series is originally an SBS drama produced in Korea.
It is therefore more accurate to describe it as an SBS Korean drama streaming on Netflix rather than assuming it is a Netflix-produced original.
Is Doctor X a Medical Drama?
Yes.
The series is primarily a medical drama, but it also has strong noir, mystery, thriller, and social-issue elements.
The story is not focused only on patients and operations.
It also explores the politics and corruption inside a large hospital.
Is Doctor X a Romance Drama?
Romance is not the central focus of the series.
The main storyline revolves around medicine, corruption, hospital politics, professional ethics, and Su-jeong’s confrontation with the hospital system.
Viewers looking for a medical thriller rather than a romance-focused K-drama may find the premise particularly distinctive.
Doctor X Ending
The complete ending cannot be confirmed before the drama finishes airing.
The central questions expected to be resolved include:
- How far will Su-jeong go to challenge the hospital?
- Can she change the system from inside?
- What will happen to Guseo University Hospital?
- How will Bu Seung-gwon respond to Su-jeong?
- How will Park Tae-kyung’s relationship with Su-jeong develop?
- What will happen to the hospital’s existing power structure?
The final answer to these questions should be discussed only after the 12th episode airs.
Will Doctor X Have Season 2?
There is currently no confirmed Season 2 announcement.
The Korean adaptation is planned as a 12-episode first season.
Whether the story continues would depend on future official announcements and production plans.
Doctor X Age of the White Mafia FAQs
What is Doctor X: Age of the White Mafia about?
It follows genius surgeon Gye Su-jeong as she enters Guseo University Hospital and challenges a corrupt medical system controlled by power, money, and hierarchy.
Who plays Gye Su-jeong?
Kim Ji-won plays Gye Su-jeong.
Who is the female lead in Doctor X?
Kim Ji-won’s Gye Su-jeong is the central character of the series.
When does Doctor X: Mafia in White premiere?
The drama premieres on October 9, 2026.
How many episodes does Doctor X have?
The Korean series has 12 episodes.
Where can I watch Doctor X?
The series airs on SBS in South Korea and is available internationally on Netflix.
What is the Netflix title?
Netflix currently lists the series as Doctor X: Mafia in White. The drama is also widely referred to as Doctor X: Age of the White Mafia.
Is Doctor X based on another drama?
Yes. It is based on the Japanese medical drama Doctor-X: Surgeon Michiko Daimon.
Who plays the hospital director?
Son Hyun-joo plays Bu Seung-gwon, the director of Guseo University Hospital.
Who plays Park Tae-kyung?
Kim Woo-seok plays Park Tae-kyung, an intern connected to the hospital.
Is Doctor X a thriller?
Yes. Although it is primarily a medical drama, it incorporates thriller, mystery, noir, and social-issue elements.
Is Doctor X available on Netflix in India?
Current listings indicate that the drama is scheduled to stream on Netflix in India from October 9, 2026.
Final Thoughts on Doctor X: Age of the White Mafia
Doctor X: Age of the White Mafia brings a familiar medical-drama concept into a darker Korean setting.
At the center of the story is Gye Su-jeong, a surgeon who does not appear interested in becoming part of the hospital’s political machine.
Her strongest weapon is not money, authority, or connections.
It is her ability to operate.
That makes the conflict particularly interesting because the hospital system has power over almost everything except the actual skill required when a patient’s life is on the line.
Kim Ji-won’s performance as Su-jeong is also one of the major attractions of the series. Instead of a conventional hospital protagonist, she plays a character who is independent, uncompromising, and willing to challenge powerful people.
With Lee Jung-eun, Son Hyun-joo, and Kim Woo-seok surrounding her, the drama has a cast capable of supporting both the medical cases and the larger institutional conflict.
For viewers who enjoy medical thrillers, dark K-dramas, hospital politics, strong female leads, mystery, and antihero-style protagonists, Doctor X offers a different take on the familiar Korean medical-drama format.