
Seo In-guk
Biography
Seo In-guk (born October 23, 1987) is a South Korean singer-songwriter and actor. He began his singing career after winning the talent reality show Superstar K in 2009, and made his acting breakthrough in Reply 1997 (2012). Since then, he has starred in television series, High School King of Savvy (2014), Hello Monster (2015), Shopping King Louie (2016), and Death's Game (2023).
Known For

TV
Running Man
2010

TV
Home Alone
Self
2013

TV
Law of the Jungle
2011

TV
Boyfriend on Demand
Park Kyeong-nam
2026

TV
SNL Korea
Self
2011

TV
You Hee-yeol's Sketchbook
Self
2009

TV
The Seasons
Self
2023

TV
Baeksang Arts Awards
Self
2012

TV
Nattering with Nah
Self
2023

TV
Death's Game
Choi Yee-jae
2023

TV
Doom at Your Service
Myul Mang / Kim Sa-ram
2021

TV
Superstar K
Self - Participant
2009

TV
KBS Drama Awards
Host
1987

TV
ZIP DAESUNG
Self
2024

TV
Reply 1997
Yoon Yoon-jae
2012

TV
Reply 1994
Yoon Yoon-jae
2013

TV
Navillera
Hwang Hee
2021

TV
Squad 38
Yang Jung-do
2016

TV
She Was Pretty
Self
2015

Film
Project Wolf Hunting
Park Jong-du
2022
Filmography
2026TVThe Office Worker Who Sees Destinyas Choi Young-hoon2026TVBack to Workas Kang Si-woo2026TVBoyfriend on Demandas Park Kyeong-nam2026FilmBoyas Mad Hatter2025TVTwelveas Won-seung2025TVBetter Late Than Singleas Self - Cupid Expert2024TVJungle Bob2024TVZIP DAESUNGas Self2023TVDeath's Gameas Choi Yee-jae2023FilmThe Boysas Lee Jae-seok2023TVNattering with Nahas Self2023FilmTRAP by SEO IN GUK2023TVThe Seasonsas Self2022FilmProject Wolf Huntingas Park Jong-du2022TVLook, My Shoulder's Dislocatedas Self2022TVCafé Minamdangas Nam Han-jun2022TVSoundtrack #1as Jay Jun2021FilmPipelineas Pindol / Kang Sae-dol / Drill-bit2021TVDoom at Your Serviceas Myul Mang / Kim Sa-ram2021TVNavilleraas Hwang Hee2019TVAbyssas Grim Reaper2018TVThe Smile Has Left Your Eyesas Kim Moo-Young2016FilmI Love That Crazy Little Thingas Yang Ming-zhe2016TVShopaholic Louisas Louie2016TVSquad 38as Yang Jung-do2015TVShe Was Prettyas Self2015TVOh My Ghostas Edward2015TVI Remember Youas Lee Hyun2014TVThe King's Faceas Prince Gwanghae2014TVHigh School King of Savvyas Lee Min-seok / Lee Hyung-seok2014TVAnother Partingas Ahn Young Mo2013FilmSBS: The Master's Sun - Makingas Self2013FilmNo Breathingas Jo Won-il2013TVReply 1994as Yoon Yoon-jae2013TVMaster's Sunas Kang-woo2013TVHome Aloneas Self2012TV아들 녀석들as Yoo Seung-Gi2012TVReply 1997as Yoon Yoon-jae2012TVBaeksang Arts Awardsas Self2012TVLove Rainas Kim Chang-mo & Kim Jeon-seol2011TVSNL Koreaas Self2011TVLaw of the Jungle2010TVRunning Man2009TVSuperstar Kas Self - Participant2009TVYou Hee-yeol's Sketchbookas Self2002TVKBS Entertainment Awardsas Host1987TVKBS Drama Awardsas Host