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Seo Kang-joon

Seo Kang-joon

Acting · Born 1993-10-12 · 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

tv 8.1 Are You Human?
Are You Human?
2018
movie 7.7 The Beauty Inside
The Beauty Inside
2015
tv 8.2 Running Man
Running Man
2010
movie 7.2 A Year-End Medley
A Year-End Medley
2021
tv 8.4 Boyfriend on Demand
Boyfriend on Demand
2026
tv 7.0 Cheese in the Trap
Cheese in the Trap
2016
tv 8.0 Good Doctor
Good Doctor
2013
tv 7.3 When the Weather Is Fine
When the Weather Is Fine
2020
tv 7.0 Grid
Grid
2022
tv 8.0 Undercover High School
Undercover High School
2025
tv 7.8 Busted!
Busted!
2018
tv 6.8 To the Beautiful You
To the Beautiful You
2012
movie 6.9 My Love, My Bride
My Love, My Bride
2014
tv 7.4 The Best Future
The Best Future
2014
tv 5.5 To Be Continued
To Be Continued
2015
tv 7.6 Cunning Single Lady
Cunning Single Lady
2014
tv 7.9 WATCHER
WATCHER
2019
tv 6.2 The Third Charm
The Third Charm
2018