Ko Sung Hee

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Ko Sung Hee - Biography, Profile, Facts, and Career
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Ko Sung Hee is a South Korean-American actress. She rose to prominence due to her roles in various Korean drama series, such as Diary of a Night Watchman (2014), While You Were Sleeping (2017), and Mother (2018).

Career

Ko Sung Hee was originally trained to become a member of a girl group under KeyEast Entertainment. She was trained alongside Japanese singer RiSe for quite a while.

However, she decided to stop her training period and pursue a different path of career. Her next journey began in 2009 when she hosted a TV show called Style Studio.

A year later, she got a small role in the movie A Good Night’s Sleep for the Bad. Unfortunately, she did not get recognized for her acting in 2013.

In 2013, she managed to star in the movies Fasten Your Seatbelt and An Ethics Lesson. That very year, she also starred in the drama series Miss Korea.

From there onwards, her career kept on advancing as she participated in various drama series and movies, for example, Diary of a Night Watchman (2014) and Trade Your Love (2019).

As a newcomer, her acting was generally welcomed by Korean netizens. Up until today, she has been viewed as a promising actress with her steady acting career.

Read also: Jang Eui Soo – Biography, Profile, Trivia, Family & Life Story

Profile

  • Real Name: Ko Sung Hee (고성희)
  • Stage Name: Ko Sung Hee (고성희)
  • Nickname: Sung Hee (성희)
  • Birthday: June 21, 1990
  • Birthplace: Missouri, United States
  • Zodiac Sign: Cancer
  • Nationality: South Korean
  • Religion: –
  • Profession: Actress
  • Education: Sungkyunkwan University (Performing Arts), Kyunggi Girls’ High School
  • Hobbies: –
  • Facebook: –
  • Twitter: –
  • Instagram: @krnangel621
  • TikTok: –
  • YouTube: –

Height, Weight, & Physical Appearances 

  • Height: 170 cm (5’7”)
  • Weight: 48 kg (105 lbs)
  • Blood Type: –
  • Hair Color: Black
  • Eye Color: Black
  • Body Measurements: –
  • Shoe Size: –
  • Dress Size: –

Family 

  • Father: –
  • Mother: –
  • Brother: –
  • Sister: –

Husband, Boyfriend, & Dating History

Unidentified Man

In October 2022, her agency announced her marriage to her non-celebrity partner. The couple married in a private wedding ceremony held in November 2022 in Seoul.

Net Worth 

She is yet to disclose the actual amount of her net worth, but several sources estimated her to have collected around $1 million to $5 million of net worth.

She seems to earn her income primarily through pursuing career as an actress in the South Korean entertainment industry.

Plastic Surgery

There is no known information on whether she has undergone any cosmetic surgery to change her appearance.

Facts

  • Sung Hee is an actress under Saram Entertainment.
  • Her father is a South Korean Ambassador based in America.
  • She was originally a trainee at KeyEast Entertainment.
  • Sung Hee has a vigorous and charming personality.
  • She can speak Korean, English, and Japanese.
  • One of her talents is dancing to jazz music.
  • She was once trained alongside Japanese singer RiSe
  • Sung Hee almost debuted as a member of a girl group.
  • When filming Diary of a Night Watchman (2014), she had a burn mark by accident and called it a mark of honor.
  • Her ideal type is someone who is loyal to their partner.

Read also: Shin Seung Ho – Biography, Profile, Trivia, Family & Life Story

Movies

  • A Year-End Medley (2021), as Kim Young Joo
  • Trade Your Love (2019), as Park Hae Joo
  • Fasten Your Seatbelt (2013), as Flight Attendant Minamito
  • An Ethics Lesson (2013), as Jin Ah
  • A Good Night’s Sleep for the Bad (2010), as a supporting character

Drama Series

  • A Year-End Medley: Extended Version (TVING | 2022), as Kim Young Joo
  • Gaus Electronics (Olleh TV | 2022), as Cha Na Rae
  • King Maker: The Change of Destiny (TV Chosun | 2020), as Lee Bong Ryun
  • My Holo Love (Netflix | 2020), as Han So Yeon
  • Ms. Ma, Nemesis (SBS | 2018), as Seo Eun Ji
  • Suits (KBS2 | 2018), as Kim Ji Na
  • Mother (tvN | 2018), as Shin Ja Young
  • While You Were Sleeping (SBS | 2017), as Shin Hee Min
  • Don’t Dare to Dream (SBS | 2016), as Oh Soo Young
  • My Beautiful Bride (OCN | 2015), as Yoon Joo Yeong
  • SPY (KBS2 | 2015), as Lee Yoon Jin
  • Diary of a Night Watchman (MBC | 2014), as Do Ha
  • Miss Korea (MBC | 2013), as Kim Jae Hee

TV Shows

  • Law of the Jungle in Chatham Islands (SBS | 2019), as a guest
  • Friendly Driver (tvN | 2018), as a guest
  • Master Key (SBS | 2017), as a guest
  • Candy In My Ear (tvN | 2016), as a guest
  • Ha Jung Woo Brothers (tvN | 2013), as the main host
  • Running Man (SBS | 2010), as a guest
  • Style Studio (Elle TV | 2009), as the host
  • Radio Star (SBS | 2007), as a guest

Awards

  • 2014 MBC Drama Awards – Best New Actress – Miss Korea and Diary of a Night Watchman

Nominations

  • 2018 6th APAN Star Awards – Best Supporting Actress – Mother
  • 2018 2nd The Seoul Awards – Best Supporting Actress (Drama) – Mother and Suits
  • 2018 KBS Drama Awards – Best Supporting Actress – Suits
  • 2018 SBS Drama Awards – Best Supporting Actress – Ms. Ma, Nemesis
  • 2017 SBS Drama Awards – Excellence Award (Actress in a Wednesday – Thursday Drama – While You Were Sleeping
  • 2014 7th Korea Drama Awards – Best New Actress – Miss Korea

Quotes 

FAQs 

Who is Ko Sung Hee?

She is a South Korean-American actress.

Who is Ko Sung Hee’s real name?

Her real name is Ko Sung Hee (고성희).

What makes Ko Sung Hee famous?

She rose to prominence due to her roles in various Korean drama series, such as Diary of a Night Watchman (2014), While You Were Sleeping (2017), and Mother (2018)

Where is Ko Sung Hee from?

She was born in Missouri, United States.

How old is Ko Sung Hee?

She was born in 1990, and she is 35 years old as of 2025.

When does Ko Sung Hee celebrate her birthday?

She celebrates on the 21st of every June.

How tall is Ko Sung Hee?

Her height is 5’7″ or  170 cm.

Who are Ko Sung Hee’s parents?

She did not reveal the names of her father and mother.

Is Ko Sung Hee married?

Yes, she is married to an unidentified man. They tied the knot in 2022.

Who is Ko Sung Hee’s ex-boyfriend?

Her ex-boyfriend is not known.

How rich is Ko Sung Hee?

Her net worth is around $1 million to $5 million.

What is Ko Sung Hee’s nationality?

Her nationality is Korean-American.

Ko Sung Hee is an actress with a lot of hidden talents. Let’s hope that she will be kind enough to showcase all of her unexposed talents to fans around the world.