Ji Chang-wook (born July 5, 1987) is a South Korean actor and singer. He rose to fame for playing the lead role of Dong-hae in daily drama series Smile Again (2010-2011), and has had notable lead roles in television 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), Lovestruck in the City (2020-2021), The Sound of Magic (2022), If You Wish Upon Me (2022), The Worst of Evil (2023) and Welcome to Samdal-ri (2023-2024).