UNDERCOVER HIGH SCHOOL

Title: 언더커버 하이스쿨 / Eondeokeobeo Haiseukul (Undercover High School)

Genre: Action, comedy, spy, romance

Episodes: 12

Broadcast network: MBC

Broadcast period: 2025-Feb-21 to 2025-Mar-29

Air time: Friday & Saturday 21:50

Synopsis

Jeong Hae-seong, a demoted NIS agent following a major incident that occurred during an operation, is tasked with a special mission of tracking down the whereabouts of Emperor Gojong's missing gold bars. Hae-seong hides his identity, goes undercover as a high school student at Byeongmun High School, and meets Oh Su-a, his homeroom teacher. Su-a, a devoted teacher to her students, begins to notice the similarities between Hae-seong and her childhood first love, who left her heartbroken and filled with painful memories.

Cast

Main Cast

Seo Kang Joon as Jung Hae Sung

Jin Ki Joo as Oh Soo Ah

Kim Shin Rok as Seo Myung Joo

National Intelligence Service (NIS)

Jun Bae Soo as Team Leader Ahn Suk Ho

Jo Bok Rae as Ko Young Hoon

Yoon Ga Yi (윤가이) as Park Mi Jung

Lee Seo Hwan (이서환) as Director Kim Hyung Bae

Im Chul Hyung (임철형) as Team Leader Kong Jin Sang

Byungmun High School Student Council

Kim Min Joo (김민주) as Lee Ye Na

Park Se Hyun as Ahn Yoo Jung

Jang Sung Bum as Park Tae Soo

Lee Hyun So (이현소) as Han Seung Jae

Yoon Chae Bin (윤채빈) as Yoon Chae Rin

Kim Sun Min (김선민) as Ji Hyun Joon

Byungmun High School Students

Shin Joon Hang (신준항) as Lee Dong Min

Jung Soo Hyun (정수현) as Im Yoon Chul

Kang Pil Joon (강필준) as Son Bum Sik

Shin Ga Eun (신가은) as Choi Soo Jin

Kim Seung Bum (김승범) as Kim Ho Jin

Byeongmun High School Office

Park Jin Woo as Park Jae Moon

Oh Yong as Baek Kwang Doo

Lee Min Ji as Kim Ri Ahn

Noh Jong Hyun as Lee Joon Ho

Others

Kim Young Ah as Im Chung Ha (Soo Ah's mother)

Kim Soo Jin as Jang Man Ok

Goo Min Hyuk (구민혁) as Kim Hyun Ho

Kim Eui Sung as Seo Byung Moon

Oh Ui Shik as Jung Jae Hyun

Production Credits

Production Companies: Neo Entertainment (네오엔터테인먼트), Slingshot Studio (슬링샷스튜디오)

Director: Choi Jung In

Screenwriter: Im Young Bin (임영빈)

Posters