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).
2022Gaus ElectronicsTV showas Cha Na-rae · 12 episodes2021A Year-End MedleyMovieas Young-ju2020King Maker: The Change of DestinyTV showas Hwang Bong-ryeon · 21 episodes2020My Holo LoveTV showas Han So-yeon · 12 episodes2019Trade Your LoveMovieas Hae-joo2018Ms Ma, NemesisTV showas Seo Eun-Ji · 32 episodes2018SuitsTV showas Kim Ji-Na · 16 episodes2018MotherTV showas Shin Ja-young · 16 episodes2017Master KeyTV show2 episodes2017While You Were SleepingTV showas Shin Hee-min · 32 episodes2016Candy in My EarTV show2 episodes2015My Beautiful BrideTV showas Yoon Joo-young · 16 episodes2015SpyTV showas Lee Yoon-jin · 16 episodes2014The Night WatchmanTV showas Do-ha · 24 episodes2013Miss KoreaTV showas Kim Jae-hee · 20 episodes2013Fasten Your SeatbeltMovieas Flight attendant Minamito2013Will You Still Love Me Tomorrow?Movieas Min-Young2013An Ethics LessonMovieas Jin-ah2011Law of the JungleTV show3 episodes2010Running ManTV show1 episodes