Acting
Seo Kang-joon
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).
Titles
Law of the Jungle
2011
Home Alone
2013
Running Man
2010
KBS Drama Special
2010
Boyfriend on Demand
2026
Busted!
2018
Undercover High School
2025
Are You Human?
2018
When the Weather Is Fine
2020
Good Doctor
2013
Roommate
2014
Hwajung
2015
The Third Charm
2018
Grid
2022
WATCHER
2019
Cheese in the Trap
2016
A Love Other Than Yours
2026
To the Beautiful You
2012
Entourage
2016
Cunning Single Lady
2014
The Suspicious Housekeeper
2013
Melon Music Awards
2009
What Happens to My Family?
2014
Entertainer
2016
The Beauty Inside
2015
Idol Fever
2017
A Year-End Medley
2021
To Be Continued
2015
My Love, My Bride
2014
After School: Lucky or Not
2013
The Best Future
2014
Haneuljae’s Murder
2013
Summer Snow
2015
Bomi's Room
2014