Step into a hospital drama where white coats can hide corruption and surgical skill speaks louder than rank. This personality quiz invites you into the tense world of Doctor X and helps reveal which character from this high-stakes Korean drama best fits you. Ready to see who you’d be when the operating room—and its politics—heat up?
About Doctor X: Age of the White Mafia
Doctor X: Mafia in White, also known as Doctor X: Age of the White Mafia, is a Korean medical noir series about Gye Su-jeong, a surgeon who proves her worth through skill alone. At Guseo University Hospital, she takes on difficult cases while confronting corruption and bureaucracy. This 2026 series blends tense operations with the high-stakes intrigue of mafia dramas, as it explores a system where power can matter more than patient care.
Doctor X: Age of the White Mafia Character Profiles
Kye Su Jeong
Known as Doctor X, Gye Su-jeong is a gifted surgeon who measures herself by what she can do in the operating room, not by her place in the hospital hierarchy. Her uncompromising style and reputation as the “mad dog of the operating room” unsettle an institution accustomed to bureaucracy and influence. Su-jeong takes on daunting cases while challenging the corruption surrounding Guseo University Hospital, guided by skill and a fierce commitment to saving lives.
Jang Hui Suk
Jang Hui-suk leads the Doctor Dispatch Agency and serves as a mentor to Su-jeong. Outgoing and chatty in public, she knows how to put people at ease, but her friendliness accompanies a sharp business sense. Hui-suk is pragmatic about the medical industry’s power games and uses her agency strategically to navigate them. Her mix of warmth and calculation makes her an adaptable ally in a world where good intentions alone rarely settle a dispute.
Boo Seung-gwon
Bu Seung-gwon is the director of a struggling branch of Guseo University Hospital, where he is focused on restoring the institution’s standing. Ambitious and deeply involved in hospital politics, he values order and progress, but his priorities often put him at odds with Su-jeong’s disruptive, anti-establishment methods. Seung-gwon’s position gives him a stake in the hospital’s future, while his determination to improve its reputation complicates his dealings with those who challenge its conventions.
Park Tae Gyeong
Park Tae-gyeong is an intern and the only son of a prominent family connected to a provincial hospital. Despite his privileged background, he is compassionate and idealistic, offering a more emotionally grounded perspective among senior doctors whose priorities can be shaped by institutional politics. His encounter with Su-jeong changes his path and challenges his assumptions about the medical world. Tae-gyeong’s empathy helps distinguish him, even as he learns to navigate a demanding hospital environment.
Bae Heung Gon
Bae Heung-gon is a highly skilled specialist in general surgery and neurosurgery, known for his technical precision. In a hospital where ambition and politics can compete with patient care, he is defined by practical results and meticulous execution. His reputation as one of the institution’s most capable surgical hands rests on competence rather than showmanship. Heung-gon’s focused approach offers a grounded counterpoint to the larger conflicts unfolding around Guseo University Hospital.
Cho Won Jin
Jo Won-jin is an anesthesiology professor whose composure makes her a steady presence during high-stakes operations. When a procedure turns critical, she remains focused rather than adding to the tension, giving those around her a dependable point of calm. Her role places her close to the most demanding moments in the operating room, where precision and concentration matter. Won-jin’s quiet reliability stands out amid the hospital’s volatile personalities and competing ambitions.
Do Yun Sik
Do Yun-sik is a general surgery professor with a strong academic drive, particularly focused on research and scholarly papers. His intellectual work is paired with a calculated ambition: he hopes to rise through the hospital’s ranks and eventually become its director. Yun-sik’s professional focus gives him a clear long-term objective, while his career-minded outlook places him within the institution’s broader contest for influence. He is a methodical figure whose academic pursuits also serve his ambitions.
Lee Sun-ae
Lee Sun-ae is one of the characters in the series’ ensemble, set amid the pressures and power struggles of a medical institution. Her place among the named figures adds to the portrait of a world shaped by competing personalities, professional demands, and questions of responsibility. The series does not define her through a prominent public profile, leaving her presence comparatively understated. That restraint allows her to sit within the broader hospital landscape without reducing her to a single defining trait.
Ma Seong Gyu
Ma Seong-gyu is a senior resident shaped by the surgical department’s strict, top-down hierarchy. He follows a minimalist approach to his duties, doing no more than he considers necessary and staying within the limits of established rules. That compliance makes him a recognizable product of the institution’s rigid structure, rather than a figure inclined to challenge it. Seong-gyu’s cautious, opportunistic outlook contrasts with the disruptive independence that Su-jeong brings to the hospital.
