Seo Kang-joon
Known for
Acting
Life
Born 1993 (age 32)
Born in
Gunpo, Gyeonggi, South Korea
Credits
View on IMDb31 acting credits
Biography
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
Are You Human?
04 Jun 2018
The Beauty Inside
20 Aug 2015
Running Man
11 Jul 2010
A Year-End Medley
29 Dec 2021
Boyfriend on Demand
06 Mar 2026
Cheese in the Trap
04 Jan 2016
Good Doctor
05 Aug 2013
When the Weather Is Fine
24 Feb 2020
Photos
Filmography
2026
- Boyfriend on Demandas Seo Eun-ho5 episodes
2025
- Undercover High Schoolas Jeong Hae-sung12 episodes
2022
- Gridas Kim Sae-ha10 episodes
2021
- A Year-End Medleyas Yi-kang
2020
- When the Weather Is Fineas Im Eun-seop16 episodes
2019
- WATCHERas Kim Young-Koon16 episodes
2018
- The Third Charmas On Joon Young16 episodes
- Are You Human?as Nam Shin36 episodes
- Busted!as Kang-Joon Seo1 episode
2017
- Idol Feveras Do Yun's older brother10 episodes
2016
- Entourageas Cha Young-Bin16 episodes
- Entertaineras Lee Sang-Won2 episodes
- Cheese in the Trapas Baek In-ho16 episodes
2015
- Summer Snowas Sang-gyu
- The Beauty Insideas Woo-jin 92
- To Be Continuedas Ah-rin's elder brother12 episodes
- Hwajungas Hong Joo-won50 episodes
2014
- The Best Futureas Choi Go5 episodes
- My Love, My Brideas Joon-soo
- What Happens to My Family?as Yoon Eun-Ho53 episodes
- Cunning Single Ladyas Gook Seung-hyun16 episodes
2013
- Haneuljae’s Murderas 尹河
- The Suspicious Housekeeperas Choi Soo Hyuk20 episodes
- After School: Lucky or Not24 episodes
- Good Doctoras One of the punks who wants to beat Shi On1 episode
2012
- To the Beautiful Youas One of the guys putting ghost makeup on Song Jong Min's group3 episodes
2011
- Law of the Jungle9 episodes
2010
- Running Man1 episode
- KBS Drama Special1 episode
2009
- Melon Music Awardsas Messenger1 episode