Seo Kang-joon
ActingBorn Oct 12, 1993 in Gunpo, Gyeonggi, South Korea
Lee Seung-hwan (born October 12, 1993), known professionally as Seo Kang-joon, is a South Korean actor and former singer, who was a member of the group 5urprise. He gained recognition with his role in the television series Cheese in the Trap (2016) and has since starred in Are You Human? (2018), Watcher (2019), When The Weather Is Fine (2020), Grid (2022), Undercover High School (2025), and Boyfriend on Demand (2026).
Known for
Home Alone
7.52013TV Show
Law of the Jungle
5.72011TV Show
Running Man
8.22010TV Show
KBS Drama Special
7.42010TV Show
Boyfriend on Demand
8.42026TV Show
Busted!
7.82018TV Show
Undercover High School
8.02025TV Show
Are You Human?
8.12018TV Show
The Third Charm
6.22018TV Show
What Happens to My Family?
7.82014TV Show
When the Weather Is Fine
7.32020TV Show
Good Doctor
8.02013TV Show