Son Seok Koo

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Son Seok Koo - Biography, Profile, Facts, and Career

Son Seok Koo is a South Korean actor. Throughout his career, his name becomes more popular after portraying some notable characters in Matrimonial Chaos (2018), 60 Days (2019), My Liberation Notes (2022), and The Roundup (2022).


Originally wanted to be a professional basketball player and documentary movie director, Son Seok Goo jumped into the entertainment industry by debuting as an actor.

In 2014, he began portraying a minor character in Scarlet Innocence, which later was followed by his bold appearance in Black Stone (2015), Sense8 (2017), and also Mother (2018).

Starting in 2018, this Aquarius actor started to gain more recognition after starring in Matrimonial Chaos, a romantic-comedy drama that aired on KBS2.

The next year, his name became more popular after portraying a supporting character for 60 Days, a tvN’s thriller drama.

In 2021, Seok Koo came back into the acting industry by appearing in D.P., which gave him various nominations.

His first remarkable lead role on the big screen happened in the same year after he starred in Nothing Serious.

Seok Koo later got his career breakthrough after starring in a JTBC drama, My Liberation Notes (2022) alongside Kim Ji Won which earned him a lot of praise and nominations.

Read also: Seo Eun Soo – Biography, Profile, Age, Trivia, Family & Life Story


  • Real Name: Son Seok Koo (손석구)
  • Stage Name: Son Seok Koo (손석구), Son Suk Ku
  • Nickname: Seok Koo
  • Birthday: February 7, 1983
  • Birthplace: Taepyeong-dong, Daejeon, South Korea
  • Zodiac Sign: Aquarius
  • Chinese Zodiac Sign: Dog
  • Nationality: Korean
  • Religion: –
  • Profession: Actor
  • Education: School of the Art Institute of Chicago (Majored in Visual Arts and Films)
  • Hobbies: Boxing, Playing basketball
  • Facebook: –
  • Twitter: –
  • Instagram: @sonsukku
  • TikTok: –
  • YouTube: –

Height, Weight, & Physical Appearance

  • Height: 178 cm (5’8″)
  • Weight: 80 kg (176 lbs)
  • Blood Type: B
  • Hair Color: Black
  • Eye Color: Black
  • Body Measurements: –
  • Shoe Size: –


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

Girlfriend & Dating History

Throughout his career, Son Seok Koo has had various dating rumors. He was once rumored to be dating some actresses, such as Bae Doo Na, Lee El, and Lee Seol in the past.

However, none of those rumors were true. The agencies said that they were close acquaintances and always maintained a good friendship.

Net Worth

The net worth of Son Seok Koo is estimated at between $1 million to $5 million, which comes from his job as an actor.

Not only as an actor, but he also gained income from various fields in the entertainment industry, such as modeling, advertising campaigns, and brand deals.


  • Seok Koo already spent his study abroad from middle school until higher education.
  • His original dream was to be a documentary movie director.
  • He joined military service in 2005.
  • When Seok Koo served his mandatory military service, he joined the Zaytun Division, which carried out peacekeeping in Iraq.
  • Seok Koo has always loved acting since middle school.
  • He made good friendships with Lee Je Hoon and Choi Hee Seo.
  • When living abroad, he also had a dream to be a professional basketball player.
  • These days, he would like to be a writer or stand-up comedian.
  • There were some rumors that he actually was a part of a wealthy family.
  • Seok Koo is also rumored to be the CEO of his family’s company in Daejeon.
  • Brokenback Mountain is his favorite film.
  • He had lived in America for over 10 years.
  • Seok Koo is fluent in English.
  • His ideal type is a woman who is fun, witty, intelligent, sensible, and humorous.

Read also: Jung Kyung Ho – Biography, Profile, Age, Trivia, Family & Life Story


  • The Roundup (2022), as Kang Hae Sang
  • Nothing Serious (2021), as Woo Ri
  • Hit-and-Run Squad (2019), as Ki Tae Ho
  • Shimchung Girl (2019)
  • Wedding (2017), as Sung Hoon
  • Black Stone (2015), as First Lieutenant
  • Scarlet Innocence (2014), as casino henchman

Drama Series

  • Murderer o Nangam (Netflix | 2023), as Jang Nan Gam
  • Big Bet 2 (Disney+ | 2023), as Oh Seung Hoon
  • Big Bet (Disney+ | 2022), as Oh Seung Hoon
  • D.P. 2 (Netflix | 2022), as Lim Ji Seob
  • My Liberation Notes (JTBC | 2022), as Mr. Gu
  • Jirisan (tvN | 2021), as Yim Cheol Gyeong (ep.6)
  • D.P. (Netflix | 2021), as Lim Ji Seob
  • Be Melodramatic (JTBC | 2019), as Kim Sang Soo
  • Designated Survivor: 60 Days (tvN | 2019), as Cha Young Jin
  • Matrimonial Chaos (KBS2 | 2018), as Lee Jang Hyun
  • Suits (KBS2 | 2018), as David Kim
  • Mother (tvN | 2018), as Seol Ak
  • Sense8 Season 2 (Netflix | 2017), as Detective Mun
  • Kidnapping Assemblyman Mr. Clean (SBS | 2016), as Sang Cheol’s subordinate

Music Video Appearances

  • Alone (2019) – Gummy


  • Brand of the Year Awards 2022 – Best Actor
  • Kinolights Awards 2022 – Actor of the Year (Domestic) – The Roundup, My Liberation Notes
  • Korean Association of Film Critics Awards 2022 – Best New Actor – The Roundup


  • APAN Star Awards 2022 – Excellence Award, Actor in Miniseries – My Liberation Notes
  • APAN Star Awards 2022 – Popularity Star Award, Actor – My Liberation Notes
  • APAN Star Awards 2022 – Best Couple Award (with Kim Ji Won) – My Liberation Notes
  • Blue Dragon Series Awards 2022 – Best Supporting Actor – D.P.
  • Buil Film Awards 2022 – Best New Actor – The Roundup
  • Chunsa Film Art Awards 2022 – Best Supporting Actor – The Roundup
  • Director’s Cut Awards 2022 – Best New Actor in Film – Nothing Serious
  • Grand Bell Awards 2022 – Best Supporting Actor – The Roundup
  • Baeksang Arts Awards 2019 – Best New Actor – Film – Hit-and-Run Squad
  • Baeksang Arts Awards 2019 – Best New Actor – Television – Matrimonial Chaos
  • KBS Drama Awards 2018 – Best New Actor – Suits, Matrimonial Chaos

Son Seok Koo is one of the brightest rising Korean actors in the industry. He is original and always stays true to himself.


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