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, he 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: –
  • Threads:
  • 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

Bae Doo Na

The actor was rumored to date Bae Doo Na, his labelmate and co-star in Sense8, in 2018.

However, their agency refuted the rumors, stating that the pair “are just close colleagues” and “not dating.

Lee Seol

Due to their appearance together in Netflix series D.P, Son So Ku was linked romantically to Lee Seol.

Again, his agency denied the rumors by saying that the two are just “close acquaintances.” Lee Seol’s representative agency also stated that the pair “just have a close senior-junior relationship.”

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.

Plastic Surgery

There is no known information on whether he has undergone any cosmetic surgery to change his visual appearance.


  • 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


  • Troll Farm (2024), as Im Sang Jin
  • 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


“When I was working towards becoming a good actor 10 years ago, I often felt I was being pressured to act a certain way. Now, was I really being pressured? I don’t think so. I felt that way because of my stubbornness. Because of this, even as a young actor, I wanted to find my own colors.”

“All of the characters that I took on are all part of who I am.”

“I think I like the role better when my part is small. The biggest reason why is that as impact of my character becomes smaller, it’s more fun to act.”

“Love is a very abstract and comprehensive term. When expanding on that definition of love from merely being just lovers, I think love in relationships in general is about feeling hurt over another’s tragedy as if it had actually happened to me.”


Who is Son Seok Koo?

He is a South Korean actor.

Who is Son Seok Koo’s real name?

His real name is Son Seok Koo (손석구).

What makes Son Seok Koo famous?

He’s famous because of his appearance in Matrimonial Chaos (2018), 60 Days (2019), My Liberation Notes (2022), and The Roundup (2022).

Where is Son Seok Koo from?

He was born in Taepyeong-dong, Daejeon, South Korea.

How old is Son Seok Koo?

He was born in 1983, and he is 41 years old as of 2024.

When does Son Seok Koo celebrate his birthday?

He celebrates on the 7th of every February.

How tall is Son Seok Koo?

His height is 5’8″ or 178 cm.

Who are Son Seok Koo’s parents?

He did not reveal the names of his father and mother.

Is Son Seok Koo married?

He is not married. Furthermore, there is no information on whether he is in a relationship or not.

Who is Son Seok Koo’s ex-girlfriend?

His ex-girlfriend is not known. However, he used to be rumored to date Bae Doo Na and Lee Seol.

How rich is Son Seok Koo?

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

What is Son Seok Koo’s nationality?

His nationality is South Korean.

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