Lee Seung-joon
Lee Seung-joon (이승준) is a South Korean actor with Jump Entertainment, best known as Doctor Song Sang-hyun in Descendants of the Sun and King Gojong in Mr. Sunshine.
Beyond the screen.
Lee Seung-joon is a South Korean actor who is most active in theatre but widely loved for his honest screen roles. Many viewers know him as Doctor Song Sang-hyun in Descendants of the Sun (2016) and as King Gojong in Mr. Sunshine (2018).
Lee Seung-joon is 175 cm (5 ft 9 in) tall, according to his published profile.
Early life
He was born on February 11, 1973, in South Korea. He chose the stage early and built his career in plays, and theatre remains the centre of his working life.
Career and breakthrough
He appeared in the hit war film The Admiral: Roaring Currents (2014). Television fame grew with Discovery of Love (2014) and then Descendants of the Sun, where his warm doctor won many fans.
Popular roles
In Mr. Sunshine, he plays King Gojong, the weak but human ruler of a falling kingdom. In Love Next Door (2024), he plays Choi Kyung-jong, the heroine's father, whose family scenes give the romance its warm base.
Recent work
In No Tail to Tell (2026), he plays Hyeon Sang-cheol. Lee Seung-joon keeps moving between stage and screen, and fans love his calm presence.
A career, chapter by chapter.
Selected drama roles
- Love Next Door — Choi Kyung-jong
- No Tail to Tell — Hyeon Sang-cheol
- Mr. Sunshine — King Gojong
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Stories to find them in.
Selected credits in the Oxfea collection.
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