Acting · Gunpo, Gyeonggi, South Korea · Born October 12, 1993
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).
TVA Love Other Than Yours
2026
as Namgung Ho
TVBoyfriend on Demand
2026
as Seo Eun-ho
TVUndercover High School
2025
as Jeong Hae-sung
TVGrid
2022
as Kim Sae-ha
MovieA Year-End Medley
2021
as Yi-kang
TVWhen the Weather Is Fine
2020
as Im Eun-seop
TVWATCHER
2019
as Kim Young-Koon
TVThe Third Charm
2018
as On Joon Young
TVAre You Human?
2018
as Nam Shin / Nam Shin III
TVBusted!
2018
as Kang-Joon Seo
TVIdol Fever
2017
as Do Yun's older brother
TVEntourage
2016
as Cha Young-Bin
TVEntertainer
2016
as Lee Sang-Won
TVCheese in the Trap
2016
as Baek In-ho
MovieSummer Snow
2015
as Sang-gyu
MovieThe Beauty Inside
2015
as Woo-jin 92
TVTo Be Continued
2015
as Ah-rin's elder brother
TVHwajung
2015
as Hong Joo-won
TVThe Best Future
2014
as Choi Go
MovieMy Love, My Bride
2014
as Joon-soo
MovieBomi's Room
2014
as Self
TVWhat Happens to My Family?
2014
as Yoon Eun-Ho
TVRoommate
2014
as Self
TVCunning Single Lady
2014
as Gook Seung-hyun
MovieHaneuljae’s Murder
2013
as 尹河
TVThe Suspicious Housekeeper
2013
as Choi Soo Hyuk
TVAfter School: Lucky or Not
2013
TVGood Doctor
2013
as One of the punks who wants to beat Shi On
TVHome Alone
2013
as Self
TVTo the Beautiful You
2012
as One of the guys putting ghost makeup on Song Jong Min's group
TVLaw of the Jungle
2011
TVRunning Man
2010
TVKBS Drama Special
2010
TVMelon Music Awards
2009
as Messenger
