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).
Running Man
Series • 2010
Law of the Jungle
Series • 2011
While You Were Sleeping
Series • 2017
My Holo Love
Series • 2020
Gaus Electronics
Series • 2022
Master Key
Ms Ma, Nemesis
Series • 2018
Suits
Mother
Miss Korea
Series • 2013
My Beautiful Bride
Series • 2015
Spy
King Maker: The Change of Destiny
The Night Watchman
Series • 2014
A Year-End Medley
Movie • 2021
An Ethics Lesson
Movie • 2013
Trade Your Love
Movie • 2019
Fasten Your Seatbelt
Will You Still Love Me Tomorrow?