Some actors are instantly memorable because of their performances. Others have the kind of screen presence that makes you pause mid-episode. Seo Kang-joon has both. With his calm charisma, expressive acting and signature light-brown eyes, the South Korean actor has become one of K-drama’s most recognisable leading men.

Who Is Seo Kang-joon?

Born Lee Seung-hwan, Seo Kang-joon made his entertainment debut as a member of the actor-singer group 5urprise before building his reputation as an actor. He first attracted attention through supporting roles before becoming a leading man in some of the most memorable Korean dramas of the 2010s and 2020s.

According to his official Japanese fan club profile, Seo Kang-joon’s height stands at 183 cm, giving him a tall and refined presence that suits both modern romance and action roles. But his most talked-about feature has to be his eyes. Seo Kang-joon’s eye colours appear noticeably lighter than the typical deep-brown shades. They are commonly described as light brown, hazel or dark brown.

Seo Kang-joon’s Best Dramas and TV Shows

Looking for the best TV shows with Seo Kang-joon? Add these titles to your watchlist.

• Cheese in the Trap — as Baek In-ho, a talented pianist with a rebellious personality and complicated past.

• Are You Human Too? — Nam Shin III, a cold human heir and an android created to replace him.

• The Third Charm — On Joon-young, a thoughtful and slightly awkward man navigating love, heartbreak and personal growth.

• When the Weather Is Fine — Im Eun-seob, as a quiet bookstore owner living in the countryside.

• Watcher — Kim Young-goon, a darker role as a police officer investigating corruption within the force.

• Grid — Kim Sae-ha, plays a government employee connected to a mysterious figure who once saved humanity.

• Undercover High School — plays Jung Hae Seong, an elite NIS agent facing demotion, goes undercover at Byeongmun High School.

• Boyfriend on Demand — Seo Eun Ho, cameo as a virtual boyfriend.

Seo Kang-joon’s Next Drama: A Love Other Than Yours

Seo Kang-joon is set to return in the upcoming KBS drama A Love Other Than Yours, starring opposite Ahn Eun-jin. The series follows a couple who have been together for 10 years as their relationship faces emotional changes, temptation and the difficult question of whether love is still enough. The drama is scheduled to premiere on September 12, 2026.

Why He Is the Ultimate Man Crush

Seo Kang-joon’s appeal goes beyond his visuals. Yes, his height, soft features and distinctive eyes make him instantly eye-catching, but it is his ability to switch between quiet romance, action, fantasy and mystery that keeps viewers coming back.

With A Love Other Than Yours on the horizon, now is the perfect time to revisit his best work — and perhaps understand why so many fans have been crushing on him for years.