Undercover High School (2025): Where to Watch, Cast & Facts
An evergreen, sourced guide to Undercover High School: streaming options, cast and core facts.
Here's the full cast of Undercover High School (2025) — who plays who — plus where to watch and the essential facts about this TV series.
Where to watch
TMDB's U.S. watch-provider data lists Rakuten Viki, OnDemandKorea, Kocowa Amazon Channel, Kocowa. Availability changes by country and date, so check your streaming app before watching.
Cast
Seo Kang-joon as Jeong Hae-sung; Jin Ki-joo as Oh Su-ah; Kim Shin-rock as Seo Myung-ju; Kim Min-ju as Lee Ye-na; Yoon Ga-i as Park Mi-jung; Kim Young-ah as Im Chung-ha; Lee Hyun So as Han Seung-jae; Yun Chae-bin as Yun Chae-rin
About Undercover High School
Ace NIS agent Jung Hae-seong is demoted after a mission failure. He goes undercover at a high school to locate King Gojong's missing gold, meeting his teacher Oh Soo-ah, who sees him as her lost first love, stirring old heartbreak.
More like Undercover High School
- Man to Man
- La Femme Nikita
- Legends
- Dark Blue
- The Old Man
- Taxi Driver
- Lethal Weapon
- Pretty Hard Cases
Figures and availability come from public TMDB data and are provided as a sourced reference.
Frequently asked questions
Where can I watch Undercover High School?
TMDB's U.S. watch-provider data lists Rakuten Viki, OnDemandKorea, Kocowa Amazon Channel, Kocowa. Availability changes by country and date, so check your streaming app before watching.
Who is in the cast of Undercover High School?
Seo Kang-joon as Jeong Hae-sung; Jin Ki-joo as Oh Su-ah; Kim Shin-rock as Seo Myung-ju; Kim Min-ju as Lee Ye-na; Yoon Ga-i as Park Mi-jung; Kim Young-ah as Im Chung-ha; Lee Hyun So as Han Seung-jae; Yun Chae-bin as Yun Chae-rin
Is this Undercover High School guide official?
No. It uses TMDB data as a reference and is not endorsed or certified by TMDB.
Sources
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