Seo Ji-hoon

Acting

Seo Ji-hoon

Born 25 April 1997 · Daegu, South Korea · 29

Seo Ji-hoon is a South Korean actor under Management Koo. He debuted in the hit drama “Signal” as the villainous Jang Tae Jin. He later landed his first lead roles in “Matching Boys Archery” as the puppy-like Yoo Ji Wan. He enlisted in the military on February 3, 2026

Known for

Highlights

Revenge of Others2022 · Series · Seok Jae-beom
Running Man2010 · Series
Signal2016 · Series · Jang Tae-jin
The Battleship Island2017 · Film · Joseon Draftee
Prison Playbook2017 · Series · Min Shik [Ji Ho’s friend]
My Lovely Liar2023 · Series · Lee Kang-min

Filmography

Movies

2 films

The Battleship Island2017 · Film · Joseon Draftee
The Legendary Lackey2016 · Film · Jo Tae-woong

Filmography

Series

28 shows

My Youth2025 · Series · Kim Seok-ju
On/Off2024 · Series · Jang Jun Chul
Tarot2024 · Series · Woo Jae Yoon [One Person Storage]
BEGINS ≠ YOUTH2024 · Series · Kim Hwan
The Destiny Changer2024 · Series · Geum Tae-yeong
The Midnight Studio2024 · Series · Yoon So Myeong
My Lovely Liar2023 · Series · Lee Kang-min
Payback: Money and Power2023 · Series · Developer Cha [Blue Net Developer]
Revenge of Others2022 · Series · Seok Jae-beom
Seasons of Blossom2022 · Series · Lee Ha-min
Imitation2021 · Series · Yoon Bin
To All The Guys Who Loved Me2020 · Series · Park Do-Gyeom
Meow, the Secret Boy2020 · Series · Lee Jae-seon
Touch2020 · Series · [Girl on the plane's boyfriend]
Flower Crew: Joseon Marriage Agency2019 · Series · Lee Soo
Mama Fairy and the Woodcutter2018 · Series · Kim Geum
Misty2018 · Series · Ha Myung Woo [Young]
My First Love2018 · Series · Young Kang Shin-Woo
Drama Stage2017 · Series · Kim Young Hoon
Prison Playbook2017 · Series · Min Shik [Ji Ho’s friend]
School 20172017 · Series · Yoon Kyung-woo
A Special Meal of the Weirdo 'Nara'2017 · Series · Go Shi Saeng
Mepsi Meow2017 · Series · Yeon Woo
Solomon's Perjury2016 · Series · Bae Joon-Young
Matching! Boys Archery2016 · Series · Yoo Ji Wan
Signal2016 · Series · Jang Tae-jin
Running Man2010 · Series
KBS Drama Special2010 · Series · Jo Tae Woong