The Pulse of K-Entertainment

Ji Sung
ActorSurpass Entertainment

Ji Sung

Ji Sung (지성), born Kwak Tae-geun, has spent more than two decades proving that Korean drama stardom can age without losing bite. He became a top-tier lead by pairing emotional precision with technical control, then kept evolving instead of replaying old victories in softer variations.

His current run explains the durability. MBC gave him one of his signature performances in Kill Me, Heal Me and brought him back for 2026 legal-reckoning drama The Judge Returns, where he plays a disgraced judge thrown into a second-chance fight against the same power structure that built him. SBS became another key lane through Innocent Defendant, Doctor John, and Connection, while tvN let him push into more stylized material through The Devil Judge and Adamas.

Signed to Surpass Entertainment since 2022, Ji Sung still reads like one of Korean television's safest prestige bets: ratings-tested, genre-flexible, and actor-driven enough to keep even high-concept network drama anchored in human tension.

1 articles9 creditsDebut: January 1, 1999South Korean

Gallery

Filmography

2026
The Judge ReturnsK-Drama
Lee Han-yeong (Lead)MBC
2024
ConnectionK-Drama
Jang Jae-kyeongSBS
2022
AdamasK-Drama
Ha Woo-shin / Song Soo-hyuntvN
2021
The Devil JudgeK-Drama
Kang Yo-hantvN
2019
Doctor JohnK-Drama
Cha Yo-hanSBS
2018
Familiar WifeK-Drama
Cha Joo-hyuktvN
2017
Innocent DefendantK-Drama
Park Jung-wooSBS
2015
Kill Me, Heal MeK-Drama
Cha Do-hyunMBC
2013
Secret LoveK-Drama
Jo Min-hyukKBS

Fans Also Ask

What is Ji Sung best known for?
Ji Sung is best known for leading major Korean dramas such as Kill Me, Heal Me, Innocent Defendant, Familiar Wife, The Devil Judge, Connection, and The Judge Returns. He is especially respected for mixing emotional intensity with technical control across melodrama, thriller, legal drama, and high-concept network television.
What is Ji Sung's real name?
Ji Sung's real name is Kwak Tae-geun. He debuted under the stage name Ji Sung and built one of Korean television's most durable lead-actor careers, with marquee titles stretching from Secret Love and Kill Me, Heal Me to Connection and The Judge Returns.
What is The Judge Returns about?
The Judge Returns is Ji Sung's 2026 MBC drama about Lee Han-young, a compromised judge who gets thrown back into 2025 and uses the second chance to confront the legal and corporate power network that once controlled him. The series opened as a morally charged legal redemption story rather than a conventional courtroom procedural.
When did Ji Sung join Surpass Entertainment?
Ji Sung signed with Surpass Entertainment in January 2022. The move opened a new management phase after he was already established as one of Korea's most reliable male leads, and it lined up with the run that included Adamas, Connection, and The Judge Returns.
Is Ji Sung active on social media?
Yes. Ji Sung uses Instagram through @justin_jisung and also maintains the X account @mr__jisung. His public social footprint is leaner than that of many younger actors, but those two accounts remain the clearest direct channels tied to his official activity and photography.

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