- Country: South Korea
- Genres: Action, Crime, Thriller
- Release: 2018-06-08
- Director: Hae-Young Lee
- Writers: Jung Seo-Kyoung
- Language: Korean
- Stars: Ryu Jun-yeol , Seung-won Cha , Cho Jin-woong , Seong-ryeong Kim
- Runtime: 123 min
- Awards: 10 wins & 28 nominations
- AKA: Believer (Australia) , Believer (New Zealand) , Dokjeon (Korea) , 信徒 (Taiwan) , Сторонник (Russian Federation) , 毒戦 BELIEVER (Japan) , Wyznawca (Poland) , Dokjeon , Dokjeon (India) , Drug War , Believer (Germany) , Believer (Canada) , Believer , Dokjeon (Canada) , Believer (United Kingdom) , Believer (United States of America) , Believer (Argentina) , 毒戰寒流 (Hong Kong) , Dokjeon (Italy)Drug War, 毒战 (China), 독전 (South Korea)
- Plot:
After a traumatic event, a drug trafficker turns sides and conspires with a dangerously ambitious undercover police officer to bring down the mysterious kingpin of a major drug cartel. (Remake of the Chinese film “Drug War,” 2012.)
- IMDB:tt7095654
Believer Cast · · · ALL
Hae-Young Lee
Director
Cho Jin-woong
Won-ho
Ryu Jun-yeol
Seo Young-rak
Ju-hyuk Kim
Jin Ha-rim
Seung-won Cha
Brian
Seong-ryeong Kim
Oh Yeon-ok
Hae-Joon Park
Park Seon-chang
Moon-cheol Nam
Department Head
Jun-won Jung
Deok-cheon
Jung Ga-ram
Dong-woo
Jin Seo-yeon
Bo-ryeong
Dong-yeong Kim
Dong-yeong
Joo-Young Lee
Joo-yeong
Seong-yeon Park
Sign Language Interpreter
Park Eun-Young
Yook Pil-soon
Tae-Jun Kim
Young-bae
Baek Seung-hwan
Incheon Factory
Seong-Bong Ahn
Brian's Entourage