Baek Sung-hyun (백성현) is a South Korean actor. He was born on January 30, 1989, in Gwangmyeong, Gyeonggi-do, South Korea, and he is signed with MUMW. He made his acting debut in 1994 as a child actor, and he has worked in television dramas for many years.

He is best known as Shim Dae-sik in Voice (2017), a crime drama. He also played Kang Byung-jin in Iris (2009), an action drama. The two roles span many years of his career, from a young actor in Iris to a leading crime drama in Voice. Fans can explore both dramas and their full casts in the Oxfea catalogue.