Biography
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).
TV credits
Rated 0.0 out of 10
A Love Other Than Yours
2026
Rated 8.4 out of 10
Boyfriend on Demand
2026
Rated 8.0 out of 10
Undercover High School
2025
Rated 7.0 out of 10
Grid
2022
Rated 7.3 out of 10
When the Weather Is Fine
2020
Rated 7.9 out of 10
WATCHER
2019
Rated 6.2 out of 10
The Third Charm
2018
Rated 8.1 out of 10
Are You Human?
2018
Rated 7.8 out of 10
Busted!
2018
Rated 1.0 out of 10
Idol Fever
2017
Rated 7.7 out of 10
Entourage
2016
Rated 6.6 out of 10
Entertainer
2016
Rated 7.0 out of 10
Cheese in the Trap
2016
Rated 5.5 out of 10
To Be Continued
2015
Rated 4.5 out of 10
Hwajung
2015
Rated 7.4 out of 10
The Best Future
2014
Rated 7.8 out of 10
What Happens to My Family?
2014
Rated 8.2 out of 10
Roommate
2014
Rated 7.6 out of 10
Cunning Single Lady
2014
Rated 5.0 out of 10
The Suspicious Housekeeper
2013
Rated 4.7 out of 10
After School: Lucky or Not
2013
Rated 8.0 out of 10
Good Doctor
2013
Rated 7.5 out of 10
Home Alone
2013
Rated 6.8 out of 10
To the Beautiful You
2012