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

Running Man

You Hee-yeol's Sketchbook

Home Alone

Law of the Jungle

The Seasons

SNL Korea

Nattering with Nah

Baeksang Arts Awards

All Movies (8)

• Boy2026 · as Mad Hatter
• The Boys2023 · as Lee Jae-seok
• TRAP by SEO IN GUK2023
• Project Wolf Hunting2022 · as Park Jong-du
• Pipeline2021 · as Pindol / Kang Sae-dol / Drill-bit
• I Love That Crazy Little Thing2016 · as Yang Ming-zhe
• SBS: The Master's Sun - Making2013 · as Self
• No Breathing2013 · as Jo Won-il

All TV Shows (40)

• See You at Work Tomorrow!2026 · as Kang Si-woo
• Boyfriend on Demand2026 · as Park Kyeong-nam
• Twelve2025 · as Won-seung
• Better Late Than Single2025 · as Self - Cupid Expert
• Jungle Bob2024 · as Self
• ZIP DAESUNG2024 · as Self
• Hyell's Club2024
• Death's Game2023 · as Choi Yee-jae
• Nattering with Nah2023 · as Self
• The Seasons2023 · as Self
• Look, My Shoulder's Dislocated2022 · as Self
• Café Minamdang2022 · as Nam Han-jun
• Soundtrack #12022 · as Jay Jun
• Doom at Your Service2021 · as Myul Mang / Kim Sa-ram
• Navillera2021 · as Hwang Hee
• Abyss2019 · as Grim Reaper
• The Smile Has Left Your Eyes2018 · as Kim Moo-Young
• Shopaholic Louis2016 · as Louie
• Squad 382016 · as Yang Jung-do
• She Was Pretty2015 · as Self
• Oh My Ghost2015 · as Edward
• I Remember You2015 · as Lee Hyun
• The King's Face2014 · as Prince Gwanghae
• High School King of Savvy2014 · as Lee Min-seok / Lee Hyung-seok
• Another Parting2014 · as Ahn Young Mo
• Reply 19942013 · as Yoon Yoon-jae
• Master's Sun2013 · as Kang-woo
• Home Alone2013 · as Self
• 아들 녀석들2012 · as Yoo Seung-Gi
• Reply 19972012 · as Yoon Yoon-jae
• Baeksang Arts Awards2012 · as Self
• Love Rain2012 · as Kim Chang-mo & Kim Jeon-seol
• SNL Korea2011 · as Self
• Law of the Jungle2011
• Running Man2010
• Superstar K2009 · as Self - Participant
• You Hee-yeol's Sketchbook2009 · as Self
• KBS Entertainment Awards2002 · as Host
• KBS Drama Awards1987 · as Host
• The Office Worker Who Sees Destiny— · as Choi Young-hoon