Tae Geun Kwak

Ji Sung

  • Name: Ji Sung
  • Native name: 지성
  • Given name: Kwak Tae Geun
  • Also Known as: 곽태근, Ji Seong, Gwak Tae Gun, Justin
  • Nationality: South Korean
  • Gender: Male
  • Born: February 27, 1977
  • Age: 49
Ji Sung, born Kwak Tae Geun, is a South Korean actor presented by Surpass Entertainment.

As his parents were both educators, it was expected of him to also enter the profession. But in his sophomore year, his father bought him a VCR, allowing him to view "Rain Man’" Dustin Hoffman's performance made such an impression on him, that he decided to become an actor, despite his father's objections.

While studying at the Theatre and Film at Hanyang University in 1999, his first-ever audition was for the drama "KAIST" (카이스트). Up until that time, Tae Gun had been using the stage name Choi Ji Sung but at his manager’s suggestion, dropped the surname Choi, becoming simply Ji Sung.

He enlisted in the military in June of 2005 and was discharged on June 6, 2007.

In January 2020, on the TV show RUN, Ji Sung revealed that he suffers from Spondylosis, a condition that results in constant pain in the lower back.

He received Daesang (the Grand Prize) for “Kill Me Heal Me” in 2015 and “Defendant” in 2017.

He was part of Namoo Actors from 2010 until August 2021. In January 2022, he signed a contract with his current agency.

Ji Sung met actress Lee Bo Young on the set of the 2004 TV series "Save the Last Dance for Me" (마지막 춤은 나와 함께), and they confirmed their relationship in 2007. They got married on September 27, 2013. They welcomed their first child, a daughter Kwak Ji Yoo, who was born on June 12, 2015. Their second child, a son named Kwak Bo Ah, was born on February 4, 2019.

(Source: Wikipedia; edited by MyDramaList) Edit Biography
Drama
Year Title # Role Rating
2026
The Apartment Job
The Apartment Job
Korean Drama, 2026, 12 eps
Park Hae Gang (Main Role)
12
Park Hae Gang
Main Role
0.0
2026
The Judge Returns
The Judge Returns
Korean Drama, 2026, 14 eps
Lee Han Yeong (Main Role)
14
Lee Han Yeong
Main Role
8.2
2024
Connection
Connection
Korean Drama, 2024, 14 eps
Jang Jae Gyeong (Main Role)
14
Jang Jae Gyeong
Main Role
8.4
2022
Adamas
Adamas
Korean Drama, 2022, 16 eps
Ha U Sin | Song Su Hyeon (Main Role)
16
Ha U Sin | Song Su Hyeon
Main Role
7.6
2021
The Devil Judge
The Devil Judge
Korean Drama, 2021, 16 eps
Kang Yo Han (Main Role)
16
Main Role
8.7
2019
Doctor John
Doctor John
Korean Drama, 2019, 32 eps
Cha Yo Han (Main Role)
32
Main Role
8.5
2018
Familiar Wife
Familiar Wife
Korean Drama, 2018, 16 eps
Cha Ju Hyeok (Main Role)
16
Main Role
8.1
2017
Defendant
Defendant
Korean Drama, 2017, 18 eps
Park Jeong U (Main Role)
18
Main Role
8.6
2016
Entertainer
Entertainer
Korean Drama, 2016, 18 eps
Shin Suk Ho (Main Role)
18
Main Role
7.7
2015
Kill Me, Heal Me
Kill Me, Heal Me
Korean Drama, 2015, 20 eps
20
Main Role
8.6
2013
Secret Love
Secret Love
Korean Drama, 2013, 16 eps
Cho Min Hyeok (Main Role)
16
Main Role
8.3
2012
The Great Seer
The Great Seer
Korean Drama, 2012, 35 eps
Ji Sang (Main Role)
35
Main Role
7.2
2011
Protect the Boss
Protect the Boss
Korean Drama, 2011, 18 eps
Cha Ji Heon (Main Role)
18
Main Role
7.6
2011
Royal Family
Royal Family
Korean Drama, 2011, 18 eps
Han Ji Hoon (Main Role)
18
Han Ji Hoon
Main Role
6.9
2010
Kim Soo Ro
Kim Soo Ro
Korean Drama, 2010, 32 eps
Kim Soo Ro (Main Role)
32
Main Role
7.7
2009
Swallow the Sun
Swallow the Sun
Korean Drama, 2009, 25 eps
Kim Jung Woo (Main Role)
25
Main Role
7.5
2007
New Heart
New Heart
Korean Drama, 2007, 23 eps
Lee Eun Sung (Main Role)
23
Main Role
7.6
2005
Beating Heart
Beating Heart
Korean Drama, 2005, 12 eps
{Outing} Kim Woo Jin / Seok Jin (Ep. 9-10) (Support Role)
12
{Outing} Kim Woo Jin / Seok Jin (Ep. 9-10)
Support Role
7.1
2004
Save the Last Dance for Me
Save the Last Dance for Me
Korean Drama, 2004, 20 eps
Kang Hyun Woo | Baek Chang Ho (Main Role)
20
Kang Hyun Woo | Baek Chang Ho
Main Role
7.7
2004
Terms of Endearment
Terms of Endearment
Korean Drama, 2004, 70 eps
Noh Yun Tek (Main Role)
70
Main Role
7.2
2003
The King's Woman
The King's Woman
Korean Drama, 2003, 42 eps
Prince Gwanghae (Main Role)
42
Main Role
7.3
2003
All In
All In
Korean Drama, 2003, 24 eps
Choi Jung Won (Main Role)
24
Choi Jung Won
Main Role
7.5
2002
Days in the Sun
Days in the Sun
Korean Drama, 2002, 16 eps
Lee Seung Joon (Main Role)
16
Main Role
6.5
2002
Let's Go!
Let's Go!
Korean Drama, 2002, 53 eps
(Support Role)
53
Support Role
6.2
2001
Splendid Days
Splendid Days
Korean Drama, 2001, 50 eps
Jang Suk Jin (Main Role)
50
Main Role
7.1
2001
Law of Marriage
Law of Marriage
Korean Drama, 2001, 136 eps
Hwang Won Soo (Support Role)
136
Hwang Won Soo
Support Role
7.2
2001
Delicious Proposal
Delicious Proposal
Korean Drama, 2001, 16 eps
Jun Su (Support Role)
16
Jun Su
Support Role
7.1
2000
I Want to Keep Seeing You
I Want to Keep Seeing You
Korean Drama, 2000, 128 eps
Lee Ji Su (Support Role)
128
Lee Ji Su
Support Role
7.5
1999
Kaist
Kaist
Korean Drama, 1999, 81 eps
Kang Dae Wook (Main Role)
81
Main Role
7.4
Movie
Year Title Role Rating
2018
FengShui
FengShui
Korean Movie, 2018,
Heungseon Daewongun (Main Role)
Main Role
7.6
2015
The Vampire Lives Next Door To Us
The Vampire Lives Next Door To Us
Korean Movie, 2015,
Han Chang Ho (Main Role)
Main Role
6.8
2014
Confession
Confession
Korean Movie, 2014,
Hyun Tae (Main Role)
Hyun Tae
Main Role
7.7
2012
My P.S. Partner
My P.S. Partner
Korean Movie, 2012,
Hyun Seung (Main Role)
Main Role
8.1
2008
Fate
Fate
Korean Movie, 2008,
Park Yeon Hwan (Support Role)
Park Yeon Hwan
Support Role
6.9
2005
Blood Rain
Blood Rain
Korean Movie, 2005,
Du Ho (Support Role)
Du Ho
Support Role
7.0
2002
The Hidden Princess
The Hidden Princess
Korean Movie, 2002,
Jun Ho (Main Role)
Jun Ho
Main Role
6.8
Drama
Year Title # Role Rating
2001
SBS Open Drama Man and Woman: A Couple of Hours before Breaking up with Her
SBS Open Drama Man and Woman: A Couple of Hours before Breaking up with Her
Korean Drama, 2001, 1 eps
Lee Su Hyeon (Main Role)
1
Lee Su Hyeon
Main Role
0.0
TV Show
Year Title # Role Rating
2020
RUN
RUN
Korean TV Show, 2020, 4 eps
(Regular Member)
4
Regular Member
7.7
2015
Three Meals a Day: Jeongseon Village 2
Three Meals a Day: Jeongseon Village 2
Korean TV Show, 2015, 18 eps
(Ep. 4-5) (Guest)
18
(Ep. 4-5)
Guest
8.1
2012
Real Life Ji Sung
Real Life Ji Sung
Japanese TV Show, 2012, 24 eps
(Regular Member)
24
Regular Member
0.0
2011
Healing Camp
Healing Camp
Korean TV Show, 2011, 219 eps
(Ep. 3) (Guest)
219
(Ep. 3)
Guest
7.4
2010
Running Man
Running Man
Korean TV Show, 2010, 850 eps
(Ep. 54, 116-117, 202-203) (Guest)
850
(Ep. 54, 116-117, 202-203)
Guest
9.2
2009
Strong Heart
Strong Heart
Korean TV Show, 2009, 166 eps
(Ep. 151-152) (Guest)
166
(Ep. 151-152)
Guest
7.7
2007
Live Talk Show Taxi
Live Talk Show Taxi
Korean TV Show, 2007, 501 eps
(Ep. 223, 336) (Guest)
501
(Ep. 223, 336)
Guest
7.7
2007
Happy Together Season 3
Happy Together Season 3
Korean TV Show, 2007, 557 eps
(Ep. 276, 317) (Guest)
557
(Ep. 276, 317)
Guest
7.6
1998
Music Bank
Music Bank
Korean TV Show, 1998, 1240 eps
[Host] (Jun 18 - Nov 5, 2004) (Regular Member)
1240
[Host] (Jun 18 - Nov 5, 2004)
Regular Member
7.8
Articles
Ji Sung, Ha Yoon Kyung, Park Byung Eun, Moon So Ri's 'Apartment' gears up for release
News - Jun 4, 2026

Upcoming JTBC drama 'Apartment' is coming this July

Ji Sung, Ha Yoon Kyoung's 'Apartment' announces premiere
News - May 19, 2026

New JTCB drama is coming soon

Winners & Nominees Of The 62nd Baeksang Arts Awards
News - May 8, 2026

In case you missed it! Here's a list of the 62nd Baeksang Arts Awards 2026 winners and nominees!

JTBC unveils 2026 K-drama lineup
K-Drama - Mar 30, 2026

JTBC has unveiled its 2026 K-drama lineup

Won Jin A is positively reviewing offer to star alongside Ji Sung in a new MBC K-drama
News - Mar 6, 2025

Won Jin A's next K-drama project will possibly be with actor Ji Sung.

Actor Ji Sung in talks to return to MBC K-dramas after 10 years!
News - Jan 10, 2025

Actor Ji Sung will reportedly return to MBC 10 years after Kill Me, Heal Me.

Ji Sung

Tae Geun Kwak
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Details

  • First Name: Tae Geun
  • Family Name: Kwak
  • Native name: 지성
  • Also Known as: 곽태근, Ji Seong, Gwak Tae Gun, Justin
  • Nationality: South Korean
  • Gender: Male
  • Born: February 27, 1977
  • Age: 49

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