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 mature without losing sharpness. He became a genuine top-tier lead by pairing emotional precision with technical control, then kept evolving instead of replaying old victories in slightly different clothes.

His modern run explains the staying power. MBC gave him one of his signature performances in Kill Me, Heal Me and now 2026 legal comeback vehicle The Judge Returns. SBS became another key lane through Innocent Defendant, Doctor John, and Connection. On tvN, The Devil Judge and Adamas showed how comfortably he can carry stylized, high-concept material without losing the human pull inside the role.

Signed to Surpass Entertainment since 2022, Ji Sung remains one of Korean television's safest prestige bets: a ratings-tested lead with enough authority to move between melodrama, thriller, and courtroom fiction while still making each project feel actor-driven rather than format-driven. His public-facing social footprint stays lean, but the scale of the work does not.

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 2026 MBC series The Judge Returns. He is especially respected for mixing emotional intensity with exact technical control across melodrama, thriller, and legal drama.
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 drama's most durable lead-actor careers, with major titles spanning Secret Love, Kill Me, Heal Me, The Devil Judge, Connection, and The Judge Returns.
When did Ji Sung join Surpass Entertainment?
Ji Sung signed with Surpass Entertainment in January 2022. The move opened a new management chapter after he was already established as one of Korea's most reliable male leads, and it lined up with the career stretch 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 smaller than many younger actors, but those accounts remain the clearest direct channels tied to his official activity and photography.
What is The Judge Returns?
The Judge Returns is Ji Sung's 2026 MBC drama in which he plays lead character Lee Han-yeong. The Friday-Saturday series marked another heavyweight network slot for him and extended the legal-thriller lane that has become one of the most reliable parts of his late-career run.

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