Jang Hyun-sung
Jang Hyun-sung (장현성) is a South Korean actor known for his deep and honest acting in theatre, films and television, remembered as the cold police chief Kim Bum-joo in Signal and as Jin Myeong-chul in Flex X Cop. He is with the agency YG Entertainment.
Beyond the screen.
Jang Hyun-sung is a South Korean actor known for his deep and honest acting in theatre, films and television. Crime drama fans remember him as Kim Bum-joo in Signal (2016). He is with YG Entertainment.
He is 178 cm tall.
Early life
He was born on July 17, 1970, in Geoje, and studied theatre at Seoul Institute of the Arts. He is married and has two sons.
Career and breakthrough
He started with the Hakjeon Theatre Company. He became well known for films with director Song Il-gon, such as Spider Forest (2004) and Feathers in the Wind (2005).
Popular roles
In Signal (2016), he played Kim Bum-joo, a police officer hiding the truth. In Flex X Cop (2024), he played Jin Myeong-chul, the chairman of Hansu Group.
Recent work
He played Kim Sang-man in Money Heist: Korea (2022) and Ha Tae-su in The Art of Negotiation (2025).
A career, chapter by chapter.
Selected drama roles
- Signal — Kim Bum-joo
- Flex X Cop — Jin Myeong-chul
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Selected credits in the Oxfea collection.
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