
Seo Kang-joon
Acting • Born 1993-10-12
Biography
Lee Seung Hwan, known professionally as Seo Kang Joon, is a South Korean actor, model, singer, and former member of 5URPRISE (서프라이즈). He graduated from Sanbon High School and later obtained an associate's degree in Acting from Dong Seoul University. Before debuting, he worked as a part-time model to pay for college. In September 2013, Fantagio (판타지오) launched a new project group called 5URPRISE. The group members were selected through Fantagio's "Actor′s League," a program for discovering aspiring actors, and were trained for two years before making their entertainment debut. But, unlike idol groups, they began their careers as actors and then expanded into acting. He made his acting debut in 2013 with a role in the web drama "After School: Lucky or Not". They released the single "Hey U Come On" as an OST for the drama and also began appearing in the music videos of labelmate group HELLO VENUS. In 2014, he got his first lead role in "Cunning Single Lady", for which he won the Best New Actor award at the 7th Korea Drama Awards. He made his official singing debut in November 2014 as 5URPRISE's leader, vocalist and face of the group with their first single album, "From My Heart". The following year, they made their Japanese debut with the single album, "5urprise Flight". However, some of the members began getting more acting opportunities so the group had another Japanese single album in August 2016 and then stopped releasing new material. The members' contracts with Fantagio ended in March 2020 and the group officially disbanded. He enlisted for his mandatory military service on November 23, 2021, and was discharged on May 22, 2023. He is currently represented by Man Of Creation (맨오브크리에이션).
Filmography
34 credits
Bomi's Room
Movie • 2014
Self

My Love, My Bride
Movie • 2014
Joon-soo

The Beauty Inside
Movie • 2015
Woo-jin 92

Summer Snow
Movie • 2015
Sang-gyu

A Year-End Medley
Movie • 2021
Yi-kang

Haneuljae’s Murder
Movie • 2013
尹河

Law of the Jungle
TV • 2011

Cunning Single Lady
TV • 2014
Gook Seung-hyun

Hwajung
TV • 2015
Hong Joo-won

Grid
TV • 2022
Kim Sae-ha

The Suspicious Housekeeper
TV • 2013
Choi Soo Hyuk

Roommate
TV • 2014
Self

Cheese in the Trap
TV • 2016
Baek In-ho

Entourage
TV • 2016
Cha Young-Bin

To Be Continued
TV • 2015
Ah-rin's elder brother

Running Man
TV • 2010

Good Doctor
TV • 2013
One of the punks who wants to beat Shi On

Idol Fever
TV • 2017
Do Yun's older brother

To the Beautiful You
TV • 2012
One of the guys putting ghost makeup on Song Jong Min's group

Entertainer
TV • 2016
Lee Sang-Won

What Happens to My Family?
TV • 2014
Yoon Eun-Ho

Are You Human?
TV • 2018
Nam Shin / Nam Shin III

The Third Charm
TV • 2018
On Joon Young

KBS Drama Special
TV • 2010

The Best Future
TV • 2014
Choi Go

After School: Lucky or Not
TV • 2013

Undercover High School
TV • 2025
Jeong Hae-sung

WATCHER
TV • 2019
Kim Young-Koon

Melon Music Awards
TV • 2009
Messenger

When the Weather Is Fine
TV • 2020
Im Eun-seop

Home Alone
TV • 2013
Self

Busted!
TV • 2018
Kang-Joon Seo

너 말고 다른 연애
TV
Namkoong Ho

Boyfriend on Demand
TV • 2026
Seo Eun-ho