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).
An Ethics Lesson
As Jin-ah
Fasten Your Seatbelt
As Flight attendant Minamito
Trade Your Love
As Hae-joo
A Year-End Medley
As Young-ju
Will You Still Love Me Tomorrow?
As Min-Young
Law of the Jungle
Miss Korea
As Kim Jae-hee
The Night Watchman
As Do-ha
Spy
As Lee Yoon-jin
My Beautiful Bride
As Yoon Joo-young
While You Were Sleeping
As Shin Hee-min
Candy in My Ear
Mother
As Shin Ja-Young
Gaus Electronics
As Cha Na-rae
Suits
As Kim Ji-Na
Master Key
Ms Ma, Nemesis
As Seo Eun-Ji
Running Man
My Holo Love
As Han So-yeon
King Maker: The Change of Destiny
As Hwang Bong-ryeon
