Lee Sung-jae is a South Korean actor. He is best known for his roles in the K-dramas Diary of a Prosecutor (2019), Abyss (2019), Goodbye to Goodbye (2018), Don't Dare to Dream (2016), Mirror of the Witch (2016), Warm and Cozy (2015), The King's Face (2014), The Suspicious Housekeeper (2013), A Wife's Credentials (2012), Lawyer of the Great Republic of Korea (2008) and Lie (1998).
Diary of a Prosecutor tells the story of overworked prosecutors’ daily lives, who are just like you and me, ordinary folks in the city of Jinyoung. Lee Sun-woong is a passionate prosecutor at Jinyoung District Public Prosecutor Office. Cha Myung-joo is a successful prosecutor in Seoul. Due to an incident, Myung-joo was asked to join the Jinyoung office.