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ONE: High School Heroes (2025): Where to Watch, Cast & Facts

An evergreen, sourced guide to ONE: High School Heroes: streaming options, cast and core facts.

By the Pop Culture Files editorial team4 min read✓ Fact-checked
ONE: High School Heroes poster
The Movie Database (TMDB) · TMDB image asset

ONE: High School Heroes (2025) — an evergreen reference for this TV series: the essentials, the cast, where to watch and what to watch next.

Where to watch

Streaming availability changes by country and date — check TMDB or your local streaming app for current options.

Cast

Lee Jung-ha as Kim Eui-gyeom; Kim Do-wan as Kang Yoon-ki; Kim Sang-ho as Kim Seok-tae; Kim Joo-ryoung as Myeong Da-bin; Shin Jun-seop as Nam Seung-Sik; Lee Chan-hyeong as Sung-Wook; Shin Jae-whi as Lee Ki-Yoon; Lim Sung-kyun as Kim Seung-joon

About ONE: High School Heroes

A former model student, pushed by domestic abuse and bullying, joins a group that stands up to school violence and defends its victims.

More like ONE: High School Heroes

Figures and availability come from public TMDB data and are provided as a sourced reference.

Frequently asked questions

Where can I watch ONE: High School Heroes?

Streaming availability changes by country and date — check TMDB or your local streaming app for current options.

Who is in the cast of ONE: High School Heroes?

Lee Jung-ha as Kim Eui-gyeom; Kim Do-wan as Kang Yoon-ki; Kim Sang-ho as Kim Seok-tae; Kim Joo-ryoung as Myeong Da-bin; Shin Jun-seop as Nam Seung-Sik; Lee Chan-hyeong as Sung-Wook; Shin Jae-whi as Lee Ki-Yoon; Lim Sung-kyun as Kim Seung-joon

Is this ONE: High School Heroes guide official?

No. It uses TMDB data as a reference and is not endorsed or certified by TMDB.

Sources

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