SI
Seo In-guk Filmography
| 2025 | Twelve (TV Series) · as Won-Seung |
| 2024 | Jungle Bob (TV Series) |
| 2023 | Death's Game (TV Series) · as Choi Yee-Jae |
| 2022 | The Boys · as Lee Jae-Seok |
| 2022 | Project Wolf Hunting · as Park Jong-Du |
| 2022 | Café Minamdang (TV Series) · as Nam Han-Jun |
| 2022 | Soundtrack (2022) (TV Series) · as Jay Jun |
| 2021 | |
| 2021 | Doom at Your Service (TV Series) · as Myul Mang / Kim Sa-Ram |
| 2021 | Navillera (TV Series) · as Hwang Hee |
| 2019 | Abyss (TV Series) · as Grim Reaper |
| 2018 | The Smile Has Left Your Eyes (TV Series) · as Kim Moo-Young |
| 2018 | Doraemon the Movie: Nobita's Treasure Island · as Office Worker |
| 2016 | Shopping King Louie (TV Series) · as Louie |
| 2016 | I Love That Crazy Little Thing · as Yang Ming-Zhe |
| 2016 | Squad 38 (TV Series) · as Yang Jung-Do |
| 2015 | Oh My Ghost (TV Series) · as Edward |
| 2015 | I Remember You (TV Series) · as Lee Hyun |
| 2014 | The King's Face (TV Series) · as Prince Gwanghae |
| 2014 | King of High School (TV Series) · as Lee Min-Seok / Lee Hyung-Seok |
| 2014 | Another Parting (TV Series) · as Ahn Young Mo |
| 2013 | No Breathing · as Jo Won-Il |
| 2013 | Answer Me 1994 (TV Series) · as Yoon Yoon-Jae |
| 2013 | The Master's Sun (TV Series) · as Kang-Woo |
| 2012 | 아들 녀석들 (TV Series) · as Yoo Seung-Gi |
| 2012 | Answer Me 1997 (TV Series) · as Yoon Yoon-Jae |
| 2012 | Love Rain (TV Series) · as Kim Chang-Mo & Kim Jeon-Seol |
| 2011 | Law of the Jungle (TV Series) |
| 2010 | Running Man (TV Series) |
| 2002 | KBS Entertainment Awards (TV Series) · as Host |
| 1998 | Pops in Seoul (TV Series) · as Cast |
| 2025 | Better Late Than Single (TV Series) · as Self - Cupid Expert |
| 2023 | The Seasons (TV Series) · as Self |
| 2015 | She Was Pretty (TV Series) · as Himself |
| 2013 | I Live Alone (TV Series) · as Self |
| 2011 | Saturday Night Live Korea (TV Series) · as Self |
| 2009 | You Hee-yeol's Sketchbook (TV Series) · as Self |
| 2005 | Show! Music Core (TV Series) · as Self |
| 2004 | M COUNTDOWN (TV Series) · as Self |
| 1999 | MAMA Awards (TV Series) · as Self - Presenter |
| 1998 | Music Bank (TV Series) · as Self |