Meet Kim Moo Yul, the Versatile Actor Behind the Stern Na Hwa Jin in 'Teach You a Lesson'

South Korean actor Kim Moo Yul is currently drawing significant attention for his portrayal of Na Hwa Jin in the Netflix series 'Teach You a Lesson.' In the adaptation of the popular webtoon 'Get Schooled,' Na Hwa Jin is depicted as a resolute supervisor from the Educational Rights Protection Bureau (ERPB). This specialized agency is established to tackle critical problems within educational institutions.

Na Hwa Jin is characterized as a decisive figure who takes direct action to uphold justice in education. The character is dispatched to problematic schools to confront issues ranging from bullying and disciplinary violations to various threats against educators' rights. Kim Moo Yul's charismatic presence and strong acting skills effectively bring Na Hwa Jin to life, presenting a character who is both cold and authoritative, yet deeply concerned for victims of injustice. This performance further solidifies his reputation as an actor adept at complex and intense roles.

Born on May 22, 1982, Kim Moo Yul began his career in musical theater. His extensive stage experience honed his acting abilities before he transitioned to television and film. He is known for his transformative performances across genres, including thriller, action, drama, and comedy. Kim Moo Yul gained wider recognition through popular dramas like 'Bad Guys: City of Evil' (2017), where he played a prosecutor investigating corruption, and 'My Beautiful Bride' (2015), as a man determined to find his lost love. His role in the 2022 drama 'Juvenile Justice,' addressing adolescent delinquency, earned him praise for his empathetic portrayal of a young judge.

Beyond television, Kim Moo Yul has starred in notable films such as 'The Gangster, the Cop, the Devil' (2019), which screened at the Cannes Film Festival. He also appeared in 'Honest Candidate' (2020), 'Voice of Silence' (2020), 'Alienoid' (2022), 'Alienoid: Return to the Future' (2024), and the upcoming thriller 'The Old Woman with the Knife' (2025). Kim Moo Yul's consistent choice of projects featuring strong characters marks him as a significant actor in South Korea, admired for his on-screen charisma and emotional depth.