Photo: 뉴스인스타 / CC BY 3.0 (source: Wikimedia Commons)
My Take
Ji Sung is one of those actors who just keeps raising the bar — every time you think you've seen his best work, he comes back with something wilder. Kill Me, Heal Me (2015) is genuinely one of the most demanding performances I've seen in Korean television: he plays a man with dissociative identity disorder across multiple distinct personalities, and he pulled it off without it feeling like a gimmick for a single episode. But he's not a one-trick virtuoso either — Innocent Defendant (2017) showed how well he handles straight-up legal thriller tension, and The Devil Judge (2021) leaned into a darker, morally ambiguous charisma that not many actors his age can carry. Hanyang University trained him well. He's been at this for over two decades and somehow still feels fresh.
1. Profile
- Name (English)
- Ji Seong
- Name (Japanese)
- チソン
- Reading
- ちそん
- Born
- February 27, 1977 (age 49)
- Zodiac / Chinese zodiac
- Pisces / Snake
- Origin
- Seoul, South Korea
- Occupation
- film actor / actor / television actor
2. Background
- University
- Hanyang University
4. Personality
Motto
Private
6. Links
- Instagramhttps://www.instagram.com/justin_jisung/
- Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E3%83%81%E3%82%BD%E3%83%B3
Frequently asked questions
When was Ji Seong born?
Born February 27, 1977 (age 49).
Where is Ji Seong from?
Ji Seong is from Seoul, South Korea.
What does Ji Seong do?
Ji Seong works as film actor, actor, television actor.
Film actor — see all → · Actor — see all → · More people from South Korea →
7. About this entry
Tags
- Last updated
- 2026-06-02
Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.