Seo In-Guk: Biography, Filmography, and Career

Seo In-Guk (Hangul: 서인국) is a South Korean singer and actor born on October 23, 1987, in Ulsan, South Korea. Standing 180 cm tall with blood type B, he rose to public prominence after winning the inaugural season of the Mnet musical talent competition program Superstar K in 2009.

Acting Career and Filmography

Following his success in the music industry, Seo transitioned into television and film acting, securing notable roles across various networks and streaming platforms.

Television Series

Love Rain (KBS2, 2012) - Kim Chang-Mo / Kim Jeon-Seol
Reply 1997 (tvN, 2012) - Yoon Yoon-Je
The Sons (MBC, 2012-2013) - Yoo Seung-Gi
The Master's Sun (SBS, 2013) - Kang Woo
Reply 1994 (tvN, 2013) - Yoon Yoon-Je (ep.16-17)
High School King of Savvy (tvN, 2014) - Lee Min-Seok
Some Kind of Goodbye (Dramacube, 2014) - Heol / An Young-Mo
The King's Face (KBS2, 2014-2015) - Prince Gwanghae
Hello Monster (KBS2, 2015) - Lee Hyun

Oh My Ghost (tvN, 2015) - Chef Edward Seo (ep.16)
She Was Pretty (MBC, 2015) - himself (ep.9)
Squad 38 (OCN, 2016) - Yang Jung-Do
Shopaholic Louis (MBC, 2016) - Louis / Kang Ji-Sung
Hundred Million Stars From the Sky (tvN, 2018) - Kim Moo-Young
Abyss (tvN, 2019) - alien (ep.1)
Navillera (tvN, 2021) - Hwang Hui (ep.9)
Doom at Your Service (tvN, 2021) - Myul-Mang
Soundtrack 1 (Disney+, 2022) - Jay Jun (ep.3)
Cafe Minamdang (KBS2, 2022) - Nam Han-Jun
Death's Game (TVING, 2023-2024) - Choi Yee-Jae
Twelve (KBS2-Disney+, 2025) - Won-Seung
Boyfriend on Demand (Netflix, 2026) - Park Kyeong-Nam / Gu Yeong-Il
See You at Work Tomorrow (tvN, 2026) - Kang Si-Woo
Office Worker Who Sees Fate (tvN-TVING, 2027) - Choi Young-Hun

Films

No Breathing (2013) - Won-Il
Wild Dog (2014) - Tae-Woo
Pipeline (2021) - Pindol
Project Wolf Hunting (2022) - Jong-Du
The Boys (2023) - Lee Jae-Seok

Awards and Recognition

Seo has received several industry honors for his television performances:

New Star Award (The Master's Sun) – 2013 SBS Drama Awards (December 31, 2013)
Best New Actor (The King's Face) – 2014 KBS Drama Awards (December 31, 2014)
Excellent Actor (mini-series) (Shopaholic Louis) – 2016 MBC Drama Awards (December 30, 2016)
Made in tvN Actor (Reply 1997) – tvN10 Awards (October 9, 2016)
Best Kiss Award (Reply 1997) – tvN10 Awards (October 9, 2016)