Actor profile

Seo Kang-joon

12th October 1993 Gunpo, Gyeonggi, South Korea Acting

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).

6 Movies 27 TV Shows 1 In Production 34 Credits

Filmography

Movies & TV Shows

A Year-End Medley poster

A Year-End Medley 29th December 2021 as Yi-kang

Summer Snow poster

Summer Snow 28th October 2015 as Sang-gyu

The Beauty Inside poster

The Beauty Inside 20th August 2015 as Woo-jin 92

My Love, My Bride poster

My Love, My Bride 8th October 2014 as Joon-soo

Bomi's Room poster

Bomi's Room 21st August 2014 as Self

Haneuljae’s Murder poster

Haneuljae’s Murder 5th December 2013 as 尹河

Boyfriend on Demand poster

Boyfriend on Demand 6th March 2026 as Seo Eun-ho

Undercover High School poster

Undercover High School 21st February 2025 as Jeong Hae-sung

Grid poster

Grid 16th February 2022 as Kim Sae-ha

When the Weather Is Fine poster

When the Weather Is Fine 24th February 2020 as Im Eun-seop

WATCHER poster

WATCHER 6th July 2019 as Kim Young-Koon

The Third Charm poster

The Third Charm 28th September 2018 as On Joon Young

Are You Human? poster

Are You Human? 4th June 2018 as Nam Shin / Nam Shin III

Busted! poster

Busted! 4th May 2018 as Kang-Joon Seo

Idol Fever poster

Idol Fever 7th July 2017 as Do Yun's older brother

Entourage poster

Entourage 4th November 2016 as Cha Young-Bin

Entertainer poster

Entertainer 20th April 2016 as Lee Sang-Won

Cheese in the Trap poster

Cheese in the Trap 4th January 2016 as Baek In-ho

To Be Continued poster

To Be Continued 18th August 2015 as Ah-rin's elder brother

Hwajung poster

Hwajung 13th April 2015 as Hong Joo-won

The Best Future poster

The Best Future 28th October 2014 as Choi Go

What Happens to My Family? poster

What Happens to My Family? 16th August 2014 as Yoon Eun-Ho

Roommate poster

Roommate 4th May 2014 as Self

Cunning Single Lady poster

Cunning Single Lady 27th February 2014 as Gook Seung-hyun

The Suspicious Housekeeper poster

The Suspicious Housekeeper 23rd September 2013 as Choi Soo Hyuk

After School: Lucky or Not poster

After School: Lucky or Not 2nd September 2013

Good Doctor poster

Good Doctor 5th August 2013 as One of the punks who wants to beat Shi On

Home Alone poster

Home Alone 22nd March 2013 as Self

To the Beautiful You poster

To the Beautiful You 15th August 2012 as One of the guys putting ghost makeup on Song Jong Min's group

Law of the Jungle poster

Law of the Jungle 21st October 2011

Running Man poster

Running Man 11th July 2010

KBS Drama Special poster

KBS Drama Special 15th May 2010

Melon Music Awards poster

Melon Music Awards 16th December 2009 as Messenger

A Love Other Than Yours poster

Coming soon

A Love Other Than Yours 12th September 2026 as Namgung Ho