Seo Kang-joon
October 12, 1993 (32 years old) in 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).
Known For
Credits
- 2026 · A Love Other Than Yours as Namgung Ho
- 2026 · Boyfriend on Demand as Seo Eun-ho
- 2025 · Undercover High School as Jeong Hae-sung
- 2022 · Grid as Kim Sae-ha
- 2021 · A Year-End Medley as Yi-kang
- 2020 · When the Weather Is Fine as Im Eun-seop
- 2019 · WATCHER as Kim Young-Koon
- 2018 · The Third Charm as On Joon Young
- 2018 · Are You Human? as Nam Shin / Nam Shin III
- 2018 · Busted! as Kang-Joon Seo
- 2017 · Idol Fever as Do Yun's older brother
- 2016 · Entourage as Cha Young-Bin
- 2016 · Entertainer as Lee Sang-Won
- 2016 · Cheese in the Trap as Baek In-ho
- 2015 · Summer Snow as Sang-gyu
- 2015 · The Beauty Inside as Woo-jin 92
- 2015 · To Be Continued as Ah-rin's elder brother
- 2015 · Hwajung as Hong Joo-won
- 2014 · The Best Future as Choi Go
- 2014 · My Love, My Bride as Joon-soo
- 2014 · Bomi's Room as Self
- 2014 · What Happens to My Family? as Yoon Eun-Ho
- 2014 · Roommate as Self
- 2014 · Cunning Single Lady as Gook Seung-hyun
- 2013 · Haneuljae’s Murder as 尹河
- 2013 · The Suspicious Housekeeper as Choi Soo Hyuk
- 2013 · After School: Lucky or Not as
- 2013 · Good Doctor as One of the punks who wants to beat Shi On
- 2013 · Home Alone as Self
- 2012 · To the Beautiful You as One of the guys putting ghost makeup on Song Jong Min's group
- 2011 · Law of the Jungle as
- 2010 · Running Man as
- 2010 · KBS Drama Special as
- 2009 · Melon Music Awards as Messenger