SK
Seo Kang-joon
ActorBorn October 12, 1993 (32 years)
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).
Filmography
| 2026 | A Love Other Than Yours (TV Series) · as Namgung Ho |
| 2026 | Boyfriend on Demand (TV Series) · as Seo Eun-Ho |
| 2025 | Spring of Youth (TV Series) · as Voice Actor |
| 2025 | Undercover High School (TV Series) · as Jeong Hae-Sung |
| 2022 | Grid (TV Series) · as Kim Sae-Ha |
| 2021 | A Year-End Medley · as Yi-Kang |
| 2020 | When the Weather Is Fine (TV Series) · as Im Eun-Seop |
| 2019 | WATCHER (2019) (TV Series) · as Kim Young-Koon |
| 2018 | The Third Charm (TV Series) · as On Joon Young |
| 2018 | Are You Human Too? (TV Series) · as Nam Shin / Nam Shin Iii |
| 2018 | Busted! (TV Series) · as Kang-Joon Seo |
| 2016 | Entourage (KR) (TV Series) · as Cha Young-Bin |
| 2016 | Entertainer (TV Series) · as Lee Sang-Won |
| 2016 | Cheese in the Trap (TV Series) · as Baek In-Ho |
| 2015 | Summer Snow · as Sang-Gyu |
| 2015 | The Beauty Inside · as Woo-Jin 92 |
| 2015 | To Be Continued (2015) (TV Series) · as Ah-Rin's Elder Brother |
| 2015 | Hwajung (TV Series) · as Hong Joo-Won |
| 2014 | The Best Future (TV Series) · as Choi Go |
| 2014 | My Love, My Bride · as Joon-Soo |
| 2014 | What Happens to My Family? (TV Series) · as Yoon Eun-Ho |
| 2014 | Cunning Single Lady (TV Series) · as Gook Seung-Hyun |
| 2013 | The Suspicious Housekeeper (KR) (TV Series) · as Choi Soo Hyuk |
| 2013 | After School: Lucky or Not (TV Series) |
| 2013 | Good Doctor (TV Series) · as One Of The Punks Who Wants To Beat Shi On |
| 2012 | To The Beautiful You (TV Series) · as One Of The Guys Putting Ghost Makeup On Song Jong Min's Group |
| 2011 | Law of the Jungle (TV Series) |
| 2010 | Running Man (TV Series) |
| 2010 | KBS Drama Special (TV Series) |
A Love Other Than Yours (TV Series) |