Action

Undercover High School

2025★ 7.7
ActionComedyThriller

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.

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Cast

Seo Kang-Joon

Jeong Hae-seong

Jin Ki-joo

Oh Soo-ah

MK

Min-joo Kim

Lee Ye-na

Shin-rock Kim

Seo Myeong-joo

YC

Yun Chae Bin

Yoon Chae-rin

Park Se-hyun

Ahn Yoo-jeong

Jeon Bae-soo

Ahn Seok-ho

YG

Yoon Ga Yi

Park Mi-jeong

Kim Young-ah

Soo-ah's Mother

PJ

Park Jin-Woo

Park Jae-moon

Jo Bok-rae

Go Young-hoon

Lee Seo-hwan

Kim Hyeong-bae

ML

Min-ji Lee

Kim Ri-an

LH

Lee Hyun So

Han Seung-jae

YO

Yong Oh

Head teacher

SJ

Shin Joon-hang

Lee Dong-min

YJ

Yu Ji-wan

Jeong Hae-seong (Child)

Joo Suk-tae

Seung-jae’s Father

Trailer

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