Seo Kang-joon
b. 1993 · 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).
Born 12 Oct 1993
Acted in 21
A Love Other Than Yours
2026
Namgung Ho
Boyfriend on Demand
2026
Seo Eun-ho
Grid
2022
Kim Sae-ha
When the Weather Is Fine
2020
Im Eun-seop
WATCHER
2019
Kim Young-Koon
Are You Human?
2018
Nam Shin / Nam Shin III
The Third Charm
2018
On Joon Young
Idol Fever
2017
Do Yun's older brother
Entourage
2016
Cha Young-Bin
Cheese in the Trap
2016
Baek In-ho
Entertainer
2016
Lee Sang-Won
Hwajung
2015
Hong Joo-won
