Teen Cop (Korean:고딩형사) is an upcoming South Korean action comedy film directed by Yang Joon-ho and starring Kim Hye-yoon and Yoon Kyung-ho. The film centers on a young-appearing undercover detective and an older-appearing high school student who are compelled to work together. The two collaborate to investigate a mysterious hit-and-run incident that takes place at the high school.
Cast
Yoon Kyung-ho as Kyu-jin, an older-appearing high school student who gets mistaken for an undercover detective.
Kim Hye-yoon as Detective Hee-yeon, a young-appearing cop who goes undercover at the high school.
Content media group Next Entertainment World (NEW) confirmed that it would handle the investment and distribution for the film. It was announced that Teen Cop would mark the feature directorial debut of Yang Jun-ho, who previously served as an assistant director on New World (2013). The film was co-produced by Sanai Pictures[ko], Bound Entertainment, and Story Rooftop, and entered post-production ahead of its introduction to international buyers at the Asian Contents & Film Market (ACFM) in Busan. Garage Lab served as unit shoot team.
In December 2025, Yoon Kyung-ho and Kim Hye-yoon were cast to lead the film. Following this, some netizens predicted that Kim would play the high school student and Yoon the detective. The casting reversal, with Yoon portraying a mature-looking student and Kim portraying an undercover detective, attracted considerable attention on South Korean online forums.
In February 2026, Ryujin received an offer and was reviewing it. The next month, Kang Han-na had been cast, while Zo Zazz and Yoo Su-bin were considering. In April 2026, Keum Dong-hyun[ko] and Lee Seo-hwan joined the cast. Keum's character would be a pivotal role in the case that drives the plot.
↑Kim, Na-yeon (June 4, 2026). NEW, 장재현 신작→윤경호X김혜윤 '고딩형사'..라인업 공개 [공식][NEW unveils upcoming movie lineup including Jang Jae-hyun's new project and Yoon Kyung-ho X Kim Hye-yoon's Teen Cop [Official]]. Star News (in Korean). Retrieved November 10, 2026.
↑"Garage Lab Line-up". garagelab.kr (in Korean). Archived from the original on April 30, 2026. Retrieved November 10, 2026.
12Jo, Yeon-kyung (March 11, 2026). [씨네+] 교복입는 윤경호·언더커버 김혜윤...신선한 '고딩형사' 온다[[Cine+] Yoon Kyung-ho wearing school uniforms and undercover Kim Hye-yoon... A fresh Teen Cop is coming]. JTBC (in Korean). Retrieved November 10, 2026.
↑Park, Sang-hoo (December 1, 2025). [단독] '대세' 윤경호, 스크린 주연 우뚝 '고딩형사' 이끈다[[Exclusive] 'Trending' Yoon Kyung-ho rises as screen lead, to head Teen Cop]. JTBC (in Korean). Retrieved November 10, 2026.
↑Lee, So-jung (December 7, 2025). [단독] 믿고 보는 김혜윤, '고딩형사' 주연 발탁...'선업튀' 차기작만 5편 이상[[Exclusive] Trustworthy Kim Hye-yoon cast as lead in Teen Cop... over 5 upcoming projects following 'Lovely Runner']. Ten Asia (in Korean). Retrieved November 10, 2026.
↑Kim, Gam-mi (March 11, 2026). '고딩' 윤경호, '형사' 김혜윤 영화 '고딩형사' 설정에 누리꾼 술렁[Netizens buzz over the movie Teen Cop premise featuring Yoon Kyung-ho as a 'High Schooler' and Kim Hye-yoon as a 'Detective']. Sports Kyunghyang (in Korean). Retrieved November 10, 2026.
↑Ko, Seung-ah (February 27, 2026). [단독] 있지 류진, 스크린 열일 잇는다...'고딩형사' 물망[[Exclusive] ITZY's Ryujin continues her busy silver screen streak... in talks for Teen Cop]. News 1 (in Korean). Retrieved November 10, 2026.
↑Lee, So-jung (March 13, 2026). [단독] 강한나, 김혜윤 손잡았다...5년 만에 결별 후 새 출발 하더니 열일 행보[[Exclusive] Kang Han-na joins hands with Kim Hye-yoon... working hard after moving to a new agency after 5 years]. Ten Asia (in Korean). Retrieved November 10, 2026.
↑Ahn, So-yoon (March 19, 2026). [단독] '신스틸러' 유수빈→'신인 배우' 조째즈...'고딩형사', 찰떡 캐스팅 완성(종합)[[Exclusive] From 'scene-stealer' Yoo Su-bin to 'rookie actor' Zo Zazz... Perfect casting lineup completed for Teen Cop (Comprehensive)]. Sports Chosun (in Korean). Retrieved November 10, 2026.
↑Lee, So-jung (April 8, 2026). [단독] '프듀' 출신 금동현, 김혜윤과 호흡한다...이펙스 탈퇴 1년 만에 배우 행보[[Exclusive] 'Produce' alum Keum Dong-hyun to work with Kim Hye-yoon... career move as an actor one year after leaving EPEX]. Ten Asia (in Korean). Retrieved November 10, 2026.
↑Ahn, Byeong-gil (April 10, 2026). 이서환, 영화 '고딩형사' 출연[Lee Seo-hwan to appear in the movie Teen Cop]. Sports Kyunghyang (in Korean). Retrieved November 10, 2026.
↑Lee, Jong-gil (November 10, 2026). NEW 최대주주 10억 장내매수...신작 라인업 공개[NEW's largest shareholder purchases 1 billion won of stock... new upcoming lineup unveiled]. Asia Business Daily (in Korean). Retrieved November 10, 2026.