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Seo Ji-hoon

Actor • Born 1997

Seo Ji-hoon

Open Cinema

About

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

Running Man posterRunning ManSeries • 2010KBS Drama Special posterKBS Drama SpecialSeries • 2010Signal posterSignalSeries • 2016Drama Stage posterDrama StageSeries • 2017Prison Playbook posterPrison PlaybookSeries • 2017Revenge of Others posterRevenge of OthersSeries • 2022My Lovely Liar posterMy Lovely LiarSeries • 2023To All The Guys Who Loved Me posterTo All The Guys Who Loved MeSeries • 2020Imitation posterImitationSeries • 2021Meow, the Secret Boy posterMeow, the Secret BoySeries • 2020Payback: Money and Power posterPayback: Money and PowerSeries • 2023The Midnight Studio posterThe Midnight StudioSeries • 2024Misty posterMistySeries • 2018Flower Crew: Joseon Marriage Agency posterFlower Crew: Joseon Marriage AgencySeries • 2019School 2017 posterSchool 2017Series • 2017Seasons of Blossom posterSeasons of BlossomSeries • 2022Solomon's Perjury posterSolomon's PerjurySeries • 2016The Battleship Island posterThe Battleship IslandMovie • 2017