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Ko Sung-hee

Ko Sung-hee
  • Career: Actor
  • Date of birth: 1990-06-21
  • Place of birth: United States
Ko Sung-hee (Hangul: 고성희; born June 21, 1990) is a South Korean actress. She is best known for her leading roles in Diary of a Night Watchman (2014) and My Holo Love (2020). She has also starred in While You Were Sleeping (2017) and Mother (2018).