Kill Me, Heal Me — Characters & Cast

To regain control over his own mind, protect those around him from his dangerous alters, and heal the deep wounds of his past.

Begins as a guilt-ridden, timid man trapped by fear of his alters. Through therapy, courage, and love, he evolves into an integrated, confident man who confronts his abusers and takes full control of his destiny.

To shoulder the traumatic rage and pain of childhood abuse, while fiercely protecting Oh Ri-jin at all costs.

Initially aggressive and determined to destroy Do-hyun to claim Ri-jin, he matures into a cooperative protector who peacefully integrates once he knows Ri-jin is safe and loved.

To fulfill her duty as a compassionate doctor, understand the roots of Do-hyun's alters, and recover her lost childhood memories.

Evolves from an accidental psychiatric physician into a brave emotional anchor who unlocks her own suppressed past while helping Do-hyun heal.

To protect his adoptive sister Ri-jin and uncover the hidden secrets behind the corrupt Seungjin family empire.

Though harboring romantic feelings for Ri-jin, he selflessly steps back to support her as a loving brother and uses his investigative skills to help unveil the truth of the Seungjin Group.

To secure the chairmanship of the Seungjin Group and expose Do-hyun's perceived weaknesses.

Remains driven by entitlement, suspicion, and corporate ambition, serving as a persistent antagonist and moral foil to Do-hyun.