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Biography
Lee Seung-hwan, known professionally as Seo Kang-joon (서강준), 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), and Undercover High School (2025).
Source: Wikipedia · CC BY-SA
Filmography17 titles
Boyfriend on Demand
2026as Seo Eun-ho
2026as Seo Eun-ho
Running Man
2010
2010
Are You Human Too?
2018as Nam Shin / Nam Shin III
2018as Nam Shin / Nam Shin III
Undercover High School
2025as Jeong Hae-sung
2025as Jeong Hae-sung
Good Doctor
2013as One of the punks who wants to beat Shi On
2013as One of the punks who wants to beat Shi On
Watcher
2019as Kim Young-Koon
2019as Kim Young-Koon
Busted!
2018as Kang-Joon Seo
2018as Kang-Joon Seo
The Beauty Inside
2015as Woo-jin 92
2015as Woo-jin 92
Home Alone
2013as Self
2013as Self
When the Weather Is Fine
2020as Im Eun-seop
2020as Im Eun-seop
Grid
2022as Kim Sae-ha
2022as Kim Sae-ha
Cheese in the Trap
2016as Baek In-ho
2016as Baek In-ho
Summer Snow
2015as Sang-gyu
2015as Sang-gyu
My Love, My Bride
2014as Joon-soo
2014as Joon-soo
To the Beautiful You
2012as One of the guys putting ghost makeup on Song Jong Min's group
2012as One of the guys putting ghost makeup on Song Jong Min's group
The Third Charm
2018as On Joon Young
2018as On Joon Young
The Suspicious Housekeeper
2013as Choi Soo Hyuk
2013as Choi Soo Hyuk