Seo Ji-hoon

Person

Seo Ji-hoon

Acting 29 April 25, 1997

Daegu, South Korea

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 Bo…

IMDb

Known for

Popular titles

Running Man

Running Man

8.2 2010 TV Show
Revenge of Others

Revenge of Others

8.3 2022 TV Show
KBS Drama Special

KBS Drama Special

7.4 2010 TV Show
The Battleship Island

The Battleship Island

7.2 2017 Movie
Signal

Signal

8.2 2016 TV Show
Prison Playbook

Prison Playbook

8.2 2017 TV Show
My Lovely Liar

My Lovely Liar

7.8 2023 TV Show
School 2017

School 2017

7.2 2017 TV Show
Drama Stage

Drama Stage

4.0 2017 TV Show
Imitation

Imitation

7.6 2021 TV Show
Meow, the Secret Boy

Meow, the Secret Boy

6.9 2020 TV Show
Payback: Money and Power

Payback: Money and Power

6.2 2023 TV Show

Photos

More stills of Seo Ji-hoon

Biography

A closer look

Read full biography

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

Filmography

Movies and shows, newest first

  1. 2025
    My Youth

    TV show Kim Seok-ju

  2. 2024
    On/Off

    TV show Jang Jun Chul

  3. 2024
    Tarot

    TV show Woo Jae Yoon [One Person Storage]

  4. 2024
    BEGINS ≠ YOUTH

    TV show Kim Hwan

  5. 2024
    The Destiny Changer

    TV show Geum Tae-yeong

  6. 2024
    The Midnight Studio

    TV show Yoon So Myeong

  7. 2023
    My Lovely Liar

    TV show Lee Kang-min

  8. 2023
    Payback: Money and Power

    TV show Developer Cha [Blue Net Developer]

  9. 2022
    Revenge of Others

    TV show Seok Jae-beom

  10. 2022
    Seasons of Blossom

    TV show Lee Ha-min

  11. 2022
    Blue Dragon Series Awards

    TV show Self

  12. 2021
    Imitation

    TV show Yoon Bin

  13. 2020
    To All The Guys Who Loved Me

    TV show Park Do-Gyeom

  14. 2020
    Meow, the Secret Boy

    TV show Lee Jae-seon

  15. 2020
    Touch

    TV show [Girl on the plane's boyfriend]

  16. 2019
    Flower Crew: Joseon Marriage Agency

    TV show Lee Soo

More credits
  1. 2018
    Mama Fairy and the Woodcutter

    TV show Kim Geum

  2. 2018
    Misty

    TV show Ha Myung Woo [Young]

  3. 2018
    My First Love

    TV show Young Kang Shin-Woo

  4. 2017
    Drama Stage

    TV show Kim Young Hoon

  5. 2017
    Prison Playbook

    TV show Min Shik [Ji Ho’s friend]

  6. 2017
    The Battleship Island

    Movie Joseon Draftee

  7. 2017
    School 2017

    TV show Yoon Kyung-Woo

  8. 2017
    A Special Meal of the Weirdo 'Nara'

    TV show Go Shi Saeng

  9. 2017
    Mepsi Meow

    TV show Yeon Woo

  10. 2016
    Solomon's Perjury

    TV show Bae Joon-Young

  11. 2016
    The Legendary Lackey

    Movie Jo Tae-woong

  12. 2016
    Matching! Boys Archery

    TV show Yoo Ji Wan

  13. 2016
    Signal

    TV show Jang Tae-jin

  14. 2010
    Running Man

    TV show

  15. 2010
    KBS Drama Special

    TV show Jo Tae Woong