1. Lee Seung-hwan, known professionally as Seo Kang-joon, is a South Korean actor and former singer, who was a member of the group 5urprise.
12 Facts About Seo Kang-joon
1. 2.
Seo Kang-joon was born Lee Seung-hwan in Gunpo, South Korea.
3.
Seo Kang-joon took on bit parts in various television series, before making his acting debut as with a supporting role in SBS' drama The Suspicious Housekeeper.
4.
In 2014, Seo Kang-joon joined the SBS variety show Roommate as a cast member.
5.
Seo Kang-joon appeared on Law of the Jungle as a guest.
6.
In 2019, Seo Kang-joon starred in OCN's thriller drama Watcher as a policeman.
7.
Seo Kang-joon was cast in the JTBC romance drama When the Weather Is Fine, which aired in the first half of 2020.
8.
In 2022, Seo Kang-joon starred in Disney+ thriller drama Grid as an employee of the Grid Bureau.
9.
In 2024, Seo Kang-joon was cast in the MBC action comedy Undercover High School, which aired in the first half of 2025.
10.
On November 8,2021, it was reported that Seo Kang-joon would enlist in the military on November 23,2021.
11.
Seo Kang-joon received the division commander's commendation for excellent performance in basic military training.
12.
Seo Kang-joon was discharged from military service on May 22,2023 after serving as an active duty soldier for 18 months.