Sung Hwan Koo

Goo Sung Hwan

  • Name: Goo Sung Hwan
  • Native name: 구성환
  • Also Known as: Gu Sung Hwan, Gu Seong Hwan, Koo Sung Hwan, Goo Seong Hwan
  • Nationality: South Korean
  • Gender: Male
  • Born: June 30, 1980
  • Age: 44
Goo Sung Hwan is a South Korean actor. Before debuting, he worked in a theater company setting the stage decorations for the plays. He was given an opportunity to audition by director Im Kwon Taek and made his debut in 2004 with a role in the movie "Low Life" (하류인생).

He has mostly appeared in supporting roles but became well-known for his 2022 role as a serial killer in "Through the Darkness" (악의 마음을 읽는 자들).

He is currently represented by Big Boss Entertainment (빅보스엔터테인먼트).

(Source: MyDramaList) Edit Biography
Drama
Year Title # Role Rating
2025 Okay, Let's Get a Divorce
Korean Drama, 2025, 0 eps
Ji Seung Ho [Won Ho's brother] (Support Role)
0
Ji Seung Ho [Won Ho's brother]
Support Role
0.0
2024 Uncle Samsik
Korean Drama, 2024, 16 eps
Koo Hae Jun [Seodaemun faction’s leader] (Support Role)
16
Koo Hae Jun [Seodaemun faction’s leader]
Support Role
7.5
2023 Han River Police
Korean Drama, 2023, 6 eps
Oh Joong Taek [Baek Cheol’s crewman] (Support Role)
6
Oh Joong Taek [Baek Cheol’s crewman]
Support Role
7.2
2022 Pachinko
Korean Drama, 2022, 8 eps
[Mr. Chung's brother] (Ep. 3) (Guest Role)
8
[Mr. Chung's brother] (Ep. 3)
Guest Role
8.4
2022 Through the Darkness
Korean Drama, 2022, 12 eps
Hwang Dae Seon (Ep. 5) (Guest Role)
12
Hwang Dae Seon (Ep. 5)
Guest Role
8.7
2021 Jirisan
Korean Drama, 2021, 16 eps
[Detective] (Ep. 6) (Guest Role)
16
[Detective] (Ep. 6)
Guest Role
8.1
2019 Hot Stove League
Korean Drama, 2019, 16 eps
Lee Jun Mo (Support Role)
16
Lee Jun Mo
Support Role
8.6
2019 Woman of 9.9 Billion
Korean Drama, 2019, 32 eps
Heuk Gom / "Black Bear" [Businessman] (Support Role)
32
Heuk Gom / "Black Bear" [Businessman]
Support Role
7.5
2019 Designated Survivor: 60 Days
Korean Drama, 2019, 16 eps
(Support Role)
16
Support Role
8.5
2016 Tong: Memories
Korean Drama, 2016, 12 eps
Gong So Min (Support Role)
12
Gong So Min
Support Role
7.4
Movie
Year Title Role Rating
2023 Dauren's Wedding
Korean Movie, 2023,
Yeong Tae (Support Role)
Yeong Tae
Support Role
0.0
2023 Project Silence
Korean Movie, 2023,
[Bus driver] (Support Role)
[Bus driver]
Support Role
7.7
2023 Swallow
Korean Movie, 2023,
(Support Role)
Support Role
7.3
2019 Love, Again
Korean Movie, 2019,
Deputy Section Chief Cha (Support Role)
Deputy Section Chief Cha
Support Role
7.0
2017 A Taxi Driver
Korean Movie, 2017,
[Suncheon garage staff member] (Bit part)
[Suncheon garage staff member]
Bit part
8.9
2012 26 Years
Korean Movie, 2012,
Yong Goo (Support Role)
Yong Goo
Support Role
7.3
2010 71: Into the Fire
Korean Movie, 2010,
Nam Shik (Support Role)
Nam Shik
Support Role
8.5
2008 Public Enemy Returns
Korean Movie, 2008,
Sung Jin (Support Role)
Sung Jin
Support Role
7.2
2008 Open City
Korean Movie, 2008,
Detective Lee (Support Role)
Detective Lee
Support Role
7.1
2007 Scout
Korean Movie, 2007,
Jo Bong Gu (Support Role)
Jo Bong Gu
Support Role
7.7
2004 Fighter in the Wind
Korean Movie, 2004,
[Circus troupe pierrot] (Bit part)
[Circus troupe pierrot]
Bit part
7.3
2004 Low Life
Korean Movie, 2004,
Chun Shik (Support Role)
Chun Shik
Support Role
7.2
TV Show
Year Title # Role Rating
2021 Dolsing Fourmen
Korean TV Show, 2021, 170 eps
(Ep. 139) (Guest)
170
(Ep. 139)
Guest
8.7
2013 I Live Alone
Korean TV Show, 2013, 615 eps
(Ep. 427, 445, 490, 541, 546, 551, 559, 566, 568-569, 575-576) (Guest)
615
(Ep. 427, 445, 490, 541, 546, 551, 559, 566, 568-569, 575-576)
Guest
8.5
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Goo Sung Hwan

Sung Hwan Koo
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Details

  • First Name: Sung Hwan
  • Family Name: Koo
  • Native name: 구성환
  • Also Known as: Gu Sung Hwan, Gu Seong Hwan, Koo Sung Hwan, Goo Seong Hwan
  • Nationality: South Korean
  • Gender: Male
  • Born: June 30, 1980
  • Age: 44
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