Acting credits
34
Established
Large and steady acting portfolio.
Actor
Seo Kang-joon
Acting
Career Snapshot
ExplainedThese indicators come from TMDB. They are relative signals, not review ratings.
TMDB popularity
1.5
Low visibility
TMDB internal trend index. Higher usually means more searches and page activity now.
Movies: 6Series: 28
TMDB ID: 1350000
IMDb ID: nm6324813
Known for: Acting
Born: October 12, 1993
Age: 32
Place of birth: Gunpo, Gyeonggi, South Korea
Gender: Male
Adult content flag: No
Career span: 2009 - 2026
Years active: 18
Average TMDB rating: 7.38
Wikidata: Q15972890
Also known as
서강준 • Seo Kang-jun • Kang-joon Seo • Kang-jun Seo • 이승환 • Lee Seung-hwan • 徐康俊 • سو کانگ جون
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).
Photos
Movies
Movies
Movie credits linked with Seo Kang-joon.
Series
Series
Series credits linked with Seo Kang-joon.
In 4 weeks
as Namgung Ho • 14 eps
A Love Other Than Yours
2026 • Series
as Seo Eun-ho • 5 eps
Boyfriend on Demand
2026 • Series
as Jeong Hae-sung • 12 eps
Undercover High School
2025 • Series
as Kim Sae-ha • 10 eps
Grid
2022 • Series
as Im Eun-seop • 16 eps
When the Weather Is Fine
2020 • Series
as Kim Young-Koon • 16 eps
WATCHER
2019 • Series
as On Joon Young • 16 eps
The Third Charm
2018 • Series
as Nam Shin / Nam Shin III • 36 eps
Are You Human?
2018 • Series
as Kang-Joon Seo • 1 eps
Busted!
2018 • Series
as Do Yun's older brother • 10 eps
Idol Fever
2017 • Series
as Cha Young-Bin • 16 eps
Entourage
2016 • Series
as Lee Sang-Won • 2 eps
Entertainer
2016 • Series
as Baek In-ho • 16 eps
Cheese in the Trap
2016 • Series
as Ah-rin's elder brother • 12 eps
To Be Continued
2015 • Series
as Hong Joo-won • 50 eps
Hwajung
2015 • Series
as Choi Go • 5 eps
The Best Future
2014 • Series
as Yoon Eun-Ho • 53 eps
What Happens to My Family?
2014 • Series
as Self • 46 eps
Roommate
2014 • Series
as Gook Seung-hyun • 16 eps
Cunning Single Lady
2014 • Series
as Choi Soo Hyuk • 20 eps
The Suspicious Housekeeper
2013 • Series
24 eps
After School: Lucky or Not
2013 • Series
as One of the punks who wants to beat Shi On • 1 eps
Good Doctor
2013 • Series
as Self • 1 eps
Home Alone
2013 • Series
as One of the guys putting ghost makeup on Song Jong Min's group • 3 eps
To the Beautiful You
2012 • Series