Ji Chang-wook is a South Korean actor and singer. He gained popularity playing the role of Dong-hae in the drama series Smile Again (2010–2011) which filmed new episodes daily. He was later cast in other popular series such as Warrior Baek Dong-soo (2011), Empress Ki (2013–2014), Healer (2014–2015), The K2 (2016), Suspicious Partner (2017), Melting Me Softly (2019), Backstreet Rookie (2020), and Lovestruck in the City (2020-2021). In 2022, Ji Chang-wook was cast in the Netflix series The Sound of Magic. The series is based on a popular webtoon series.