![Ko Sung-hee](https://image.tmdb.org/t/p/h632/25SZEv7gv3FvipAFgcqrHaIYCKp.jpg)
Ko Sung-hee
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).
- Title: Ko Sung-hee
- Popularity: 10.123
- Known For: Acting
- Birthday: 1990-06-21
- Place of Birth: United States
- Homepage:
- Also Known As: Go Sung-hee, 고성희, Ko Sung Hee, Go Sung Hee, 高圣熙, 高胜熙, コ・ソンヒ