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