Seo Kang-joon
Acting·October 12, 1993 — 32 years old·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
Filmography · 34
2026A Love Other Than YoursTVNamgung Ho2026Boyfriend on DemandTVSeo Eun-ho2025Undercover High SchoolTVJeong Hae-sung2022GridTVKim Sae-ha2021A Year-End MedleyYi-kang2020When the Weather Is FineTVIm Eun-seop2019WATCHERTVKim Young-Koon2018The Third CharmTVOn Joon Young2018Are You Human?TVNam Shin / Nam Shin III2018Busted!TVKang-Joon Seo2017Idol FeverTVDo Yun's older brother2016EntourageTVCha Young-Bin2016EntertainerTVLee Sang-Won2016Cheese in the TrapTVBaek In-ho2015Summer SnowSang-gyu2015The Beauty InsideWoo-jin 922015To Be ContinuedTVAh-rin's elder brother2015HwajungTVHong Joo-won2014The Best FutureTVChoi Go2014My Love, My BrideJoon-soo2014Bomi's RoomSelf2014What Happens to My Family?TVYoon Eun-Ho2014RoommateTVSelf2014Cunning Single LadyTVGook Seung-hyun2013Haneuljae’s Murder尹河2013The Suspicious HousekeeperTVChoi Soo Hyuk2013After School: Lucky or NotTV2013Good DoctorTVOne of the punks who wants to beat Shi On2013Home AloneTVSelf2012To the Beautiful YouTVOne of the guys putting ghost makeup on Song Jong Min's group2011Law of the JungleTV2010Running ManTV2010KBS Drama SpecialTV2009Melon Music AwardsTVMessenger