Doctors — Characters & Cast

Initially driven by basic survival, shifts to an obsession with avenging her grandmother's death, and ultimately matures into saving lives with pure medical dedication.

Begins as a hostile, combative delinquent abandoned by family, overcomes poverty through intense self-discipline, becomes an elite neurosurgeon obsessed with uncovering malpractice, and finally evolves into a compassionate doctor capable of genuine forgiveness.

Desires to protect and nurture Hye-jung and his patients, evolving from an overprotective guardian into an open, collaborative partner.

Once a traumatized surgeon who stepped away from practice due to a surgical failure, he rediscovers his purpose by mentoring others, returns to medicine as an esteemed professor, and learns to be emotionally vulnerable rather than bearing every burden in secret.

Driven by the desire for parental validation and exclusive affection; evolves toward self-acceptance and freeing herself from toxic expectations.

Starts as a bright, privileged top student, becomes consumed by jealousy when Hye-jung excels and captures Ji-hong's favor, suffers professional and romantic insecurity, but ultimately sheds her victim mindset, achieves reconciliation, and finds her own path.

Strives to be valued solely for his surgical competence rather than his family lineage; chooses integrity over personal romantic ambition.

A principled neurosurgeon from a wealthy chaebol family who seeks independence from family business politics. Though rejected by Hye-jung, he never turns bitter or obstructive, remaining an honorable colleague, professional ally, and supportive friend to both leads.

Strives to prove his worth as a doctor to support his younger brother; learns humility and resilience through illness.

A cheerful, hardworking first-year neurosurgery resident who idolizes Hye-jung, but is forced to confront his own life-threatening meningioma, embodying the vulnerability of doctors becoming patients.