Kim Sung-kyun is a South Korean character actor known as one of Korea’s finest supporting performers.
He rose to prominence with his breakout role in Nameless Gangster: Rules of the Time (2012) and went on to gain widespread recognition through acclaimed productions such as Reply 1994, Reply 1988, Moon Lovers: Scarlet Heart Ryeo, D.P., Moving, and The Fiery Priest.
Known for his remarkable range, Kim has successfully portrayed both intimidating villains and warm-hearted family men across film and television. 
Profile
- Full Name: Kim Sung-kyun
- Born: 25 May 1980
- Age: 46 years old
- Birthplace: Daegu, South Korea
- Nationality: South Korean
- Occupation: Actor
- Height: 1.78 m
- Parents: Mr and Mrs Kim
- Siblings: N/A
- Spouse: Kim Hye-jung (2010)
- Children: 3
- Relationship: Married
- Net Worth: $5 million
Early Life and Education
Kim Sung-kyun entered the world on 25 May 1980 in Daegu, South Korea, as the son of Mr and Mrs Kim.
Information regarding his siblings has not been publicly disclosed. After completing his early education, he enrolled in the Department of Theatre and Film at Gaya University, although he later left before graduating to pursue acting professionally.
After moving to Seoul, he spent nearly a decade performing in stage productions, refining his craft before breaking into film. Kim is of Korean ethnicity and practices Christianity.
Career
Kim Sung-kyun first established himself on the theatre stage, making his debut in the play Romeo and Juliet before appearing in productions including Liar, Room Number 13, Suspense Hamlet, and I Miss You.
His screen breakthrough arrived in 2012 with Nameless Gangster: Rules of the Time, where his portrayal of Park Chang-woo earned widespread critical acclaim and several Best New Actor awards.
He quickly followed this success with memorable performances in The Neighbors, The Suspect, and Secretly, Greatly.
Building on that momentum, Kim became one of South Korea’s most respected character actors through standout roles in Reply 1994, Reply 1988, Moon Lovers: Scarlet Heart Ryeo, The Fiery Priest, D.P., Grid, Moving, and films such as Sinkhole and The Divine Move 2.
His ability to transition seamlessly between comedy, drama, and suspense has earned him lasting admiration from audiences and critics, cementing his place as one of Korean cinema’s most dependable performers.
Personal Life
Kim Sung-kyun, born on 25 May 1980 and now 46, has maintained a stable family life alongside his successful acting career.
He married Kim Hye-jung in 2010, and together they have three children—one son and two daughters—whose identities remain private.
Away from the cameras, Kim enjoys exercising, values time with his family, and has often spoken about the importance of balancing his professional commitments with his responsibilities as a husband and father.
Filmography
- 2012: Nameless Gangster: Rules of the Time (Park Chang-woo)
- 2012: The Neighbors (Ryu Seung-hyuk)
- 2012: 577 Project
- 2013: South Bound
- 2013: Fasten Your Seatbelt
- 2013: Secretly, Greatly (Seo Soo-hyuk)
- 2013: The Suspect
- 2013–2014: Reply 1994 (Samcheonpo)
- 2015: The Advocate: A Missing Body
- 2015: The Classified File
- 2015–2016: Reply 1988 (Kim Sung-kyun)
- 2021–2023: D.P. (Park Beom-gu)
- 2022: Grid (Kim Ma-nok)
- 2023: Moving (Lee Jae-man)
- 2025: Nine Puzzles
Net Worth
Kim Sung-kyun has accumulated an estimated net worth of $5 million.
Years of consistent work in blockbuster films, critically acclaimed television dramas, and theatre productions have formed the backbone of his earnings.
Commercial appearances, acting endorsements, and long-standing collaborations with leading South Korean production companies have further strengthened his financial standing within the entertainment industry.
