Kim Kwang-kyu is a South Korean actor. He is best known for his supporting roles in the television dramas Diary of a Prosecutor (2019), Trap (2019), My Strange Hero (2018), Hospital Ship (2017), Marriage Contract (2016), Splendid Politics (2015), Pinocchio (2014), Triangle (2014), The Suspicious Housekeeper (2013), I Can Hear Your Voice (2013), Scent of a Woman (2011), The Secret of Coocoo Island (2008), and Couple or Trouble (2006).
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.