Seo Kang-joon

Acting

Seo Kang-joon

Born 1993-10-12 · Gunpo, Gyeonggi, South Korea

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).

Acting credits

The Beauty Inside poster
7.7

Woo-jin, a furniture designer who wakes up in a different body every day, falls for Yi-soo, a woman he meets through his work.

The Beauty Inside

2015

A Year-End Medley poster
7.2

A romantic comedy of a young man and woman that is told in the background of hotel 'Emross'. It has stories of people who met each other at Hotel Emross during the New Year holidays. Each one has his own memory to relate and create relationships or just going nostalgic.

A Year-End Medley

2021

My Love, My Bride poster
6.9

When Young-min and Mi-young marry each other after they graduate college, they experience different challenges that test their relationship.

My Love, My Bride

2014

Summer Snow poster
7.0

Story contains the confessions of couples who are not able to express their feelings due to their closeness.

Summer Snow

2015

Haneuljae’s Murder poster
NR

In 1950s Korea, war-scarred widow Jung-boon raises her daughter alone. Teen orphan Yoon-ha falls for her; years later he marries the daughter to stay near Jung-boon, igniting forbidden love and tragedy.

Haneuljae’s Murder

2013

Bomi's Room poster
NR

Bomi is 12 years old. She wants her own room so badly. Her sister, Eonju, whom she shares the room with keeps sneaking a look at her diary. She studied really hard to get first place as her mom promised to get her own room if she did but her mom keeps denying the promise. So Bomi decides to marry her sister off! She finds out that the manager of a construction company like her sister and does her best to help him. The manager ends up winning her heart and proposes to Eonju. But she refuses his proposal. Bomi gets curious and tries to find out why she doesn't want to get married.

Bomi's Room

2014