12.12: The Day — Characters & Cast

Absolute power, political control, and securing the dominance of his secret military clique, Hanahoe.

Evolves from a calculating internal conspirator into a manic, untouchable military dictator who realizes that no authority can stop him.

Uphold his oath as a soldier, protect the capital, and preserve constitutional order against illegal insurrection.

Initially a reluctant officer who accepts command out of obligation, he becomes an isolated, uncompromising champion fighting a losing battle to preserve the nation's integrity.

Maintain military discipline, properly investigate the presidential assassination, and suppress Hanahoe's illegal influence.

Moves from an authoritative Army Chief of Staff attempting to rein in Chun to an abducted, isolated captive stripped of power, serving as the catalyst for the night's conflict.

Personal political survival and loyalty to his long-time friend Chun Doo-gwang.

Vacillates between intense anxiety over execution for treason and total complicity, ultimately committing fully to the coup when Chun pushes him past the point of no return.

Preserve the chain of command at Army Headquarters and defeat the insurgents.

Remains steadfastly allied with Lee Tae-shin throughout the chaotic night, resisting pressure and betrayal from senior officers until physically overrun by rebel troops.