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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).