Ko Sung-hee South Korean Actress Born 1990 in Columbia

Known for

TV Series 2017 While You Were Sleeping TV Series 2014 Night Watchman's Journal TV Series 2020 Kingmaker: The Change of Destiny

Biography

Ko Sung-hee (21 June 1990, Columbia) is a South Korean actress. She is recognised for appearances in While You Were Sleeping (2017) and Night Watchman's Journal (2014).

Early life

Ko Sung-hee was educated at Kyunggi Girls' High School and Sungkyunkwan University.

Career

During the 2010s, she worked on Trade Your Love (2019). Work from the 2020s includes My Holo Love (2020) and Gaus Electronics (2022).

Her filmography here covers one film and 5 TV series from 2014 to 2022. Fantasy is the most frequent genre among her listed titles (2), followed by romance (2). Ko Sung-hee reaches 317K followers on Instagram, according to the January 2025 count.

Filmography

6 credits

Year	Title	Role	Type
2022–	Gaus Electronics		TV series
2020	Kingmaker: The Change of Destiny		TV series
2020–	My Holo Love		TV series
2019	Trade Your Love		Film
2017	While You Were Sleeping		TV series
2014	Night Watchman's Journal		TV series

Personal life

She studied at Kyunggi Girls' High School and Sungkyunkwan University.

Ko Sung-hee on Social Media

Counts with the date they were read

IG Instagram @krnangel621 296K 295,846 followers, as of October 2026

Instagram stats

Data as of 10 October 2026

Followers

296K @krnangel621

Engagement rate

9.15% well above average for accounts this size

Average likes

26,854

Average comments

209 Based on the last 11 posts

Figures from public Instagram data via the official Meta API; refreshed about every 30 days.

Ko Sung-hee Photos

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Frequently asked questions

How old is Ko Sung-hee?

Ko Sung-hee is 36 years old, born on 21 June 1990 in Columbia.

What is Ko Sung-hee known for?

Ko Sung-hee is known for While You Were Sleeping (2017) and Night Watchman's Journal (2014).

What is Ko Sung-hee’s nationality?

Ko Sung-hee is South Korean, born in Columbia.

Sources

• Wikidata (Q15977203), accessed October 2026
• Follower counts: dated individually above
• Photo: dispatchsns · CC BY 3.0

Last checked 10 October 2026 by the Wiki of Celebs editorial team

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