- Country: Japan
- Genres: Crime, Drama
- Release: 1959-01-15
- Director: Kihachi Okamoto
- Writers: Motosada Nishiki , Shinichi Sekizawa
- Language: Japanese
- Stars: Koji Tsuruta , Akira Takarada , Yumi Shirakawa , Keiko Yanagawa , Mitsukô Kusabue , Seizaburō Kawazu , Yōsuke Natsuki , Mickey Curtis , Haruo Tanaka , Makoto Satō
- Runtime: 101 min
- Awards: N/A
- AKA: Boss of the Underworld (United Kingdom) , Ankokugai no kaoyaku , The Big Boss , Boss of the Underworld , Gángster sobre Tokio (Mexico) , 暗黒街の顔役(1959) (Japan) , Boss of the Dark Black City (Canada) , Herszt (Poland) , The Big Boss (United Kingdom) , The Big Boss (United States of America) , Boss of the Underworld (United States of America)
- Plot: Ryuta and Mineo Komatsu are brothers, both yakuza (gangsters). Mineo, although complicit in crime, even murder, wants out of the gangster life, hoping to become a successful singer instead. Ryuta loves his brother, but Mineo's possible defection presents problems for the gang, and Ryuta realizes he must kill his brother if he wants to survive.
- IMDB:tt0052567
Ankokugai no kaoyaku Cast · · · ALL
Kihachi Okamoto
Director
Koji Tsuruta
Ryuta Komatsu
Seizaburō Kawazu
Akira Takarada
Mineo Komatsu
Keiko Yanagawa
Yoko
Akihiko Hirata
Makoto Satō
Haruo Tanaka
Mickey Curtis
Yōsuke Natsuki
Kashimura's assistant
Hiroshi Hayashi
Sachio Sakai
Kokuten Kōdō
Noriko Honma
Akira Sera
Ikio Sawamura
Nadao Kirino
Shin Ôtomo
Hideyo Amamoto
Ren Yamamoto
Haruya Katô
Kōji Iwamoto
Yutaka Nakayama
Ren Imaizumi
Tadao Nakamaru
Shôichi Hirose