Trigger () is a 2025 South Korean action thriller television series written and directed by Kwon Oh-seung. Starring Kim Nam-gil and Kim Young-kwang, it was released on Netflix on July 25, 2025.

Synopsis Trigger follows a rise in illegal gun distribution and escalating gun crimes. The story centers on two men—one a righteous police officer, the other a cunning arms dealer—who wield weapons for vastly different reasons.

Cast Main Kim Nam-gil as Lee Do A former military sniper turned police officer investigating the illegal firearms trade. Kim Young-kwang as Moon Baek Moon Seong-hyun as teen Moon Baek A mysterious arms dealer with a dual personality and a carefully orchestrated agenda. Park Hoon as Koo Jeong-man The leader of a cleanup squad working for Gong Seok-ho.

Supporting Gil Hae-yeon as Oh Kyung-sook A mother who is on a one-man protest for her son who died from a work-related accident. Kim Won-hae as Jo Hyeon-sik A police sergeant at Domyeong Police Station and a father figure to Lee Do. Woo Ji-hyun as Yoo Jung-tae A civil service exam candidate. Yang Seung-ri as Gong Seok-ho The boss of the Glory Gang. Lee Suk as Jeon Won-seong A sex offender who has an electronic tag on his ankle. Jang Dong-joo as Jang Jung-woo A police officer and Lee Do's partner. Cha Rae-hyung as Seo Hyung-joo A detective of the Violent Crimes unit of Gyeongin Seobu Police Station. Park Yoon-ho as Park Gyu-jin A bullied student in Jeongil High School. Son Bo-seung as Seo Yong-dong A bullied student in Jeongil High School. Hong Min-gi as Kang Seong-joon A student in Jeongil High School who frequently bullies Gyu-jin and Yong-dong. Kim Joong-hee as Wang Dae-hyeon A freelance reporter who goes on hot pursuit for news of gun crimes and illegal arms distributions.

Special appearances Jung Woong-in as Yoon Won-cheol A superintendent of Gyeongin Seobu Police Station. Jo Han-chul as Chief Joo The chief of the Violent Crimes unit of Gyeongin Seobu Police Station. Lee Ji-hoon as a repairman Formerly a fellow military comrade of Lee Do. Carson Allen as subway rider

Episodes

Production The series is written and directed by Kwon Oh-seung, who directed Midnight (2021). Its production budget was about ₩30 billion.

Reception

See also

References

External links