Shin Koyanagi

Acting

Shin Koyanagi

Born March 14, 1987 · Tokyo, Japan (age 39)

Shin Koyanagi (小柳 心, Koyanagi Shin, March 14, 1987) is a Japanese actor, writer, and screenwriter from Tokyo. He has blood type A and is 181 cm tall. He belongs to Stardust Promotion. His father is the singer and talent Bro.TOM of the Bubblegum Brothers, and his younger brother is actor Yu Koyanagi.

Known For

Demon CityDemon City · 2025
Demon City
6.82025
MovieActionCrime
Framed for his family's murder and left for dead, an ex-hitman will stop at nothing to exact revenge on the masked "demons" who have taken over his city.
High & Low The Worst XHigh & Low The Worst X · 2022
High & Low The Worst X
7.52022
MovieAction
Fists fly when Oya High’s street fighters defend themselves from a three-school alliance of brawlers.
High & Low The WorstHigh & Low The Worst · 2019
High & Low The Worst
7.52019
MovieAction
The street fighters of Oya High and the delinquent brawlers of Housen Academy face off against each other when both seemingly attack each other.
Eiga Kamen Raidā Zettsu Sayonara no MisshonEiga Kamen Raidā Zettsu Sayonara no Misshon · 2026
Eiga Kamen Raidā Zettsu Sayonara no Misshon
2026
MovieActionScience Fiction
Baku Yorozu/Kamen Rider ZEZTZ is accused of terrorism by the National Public Safety Commission. Convinced of his innocence, Kensei Odaka/Kamen Rider NOX pursues the true culprit, and finally tracks down the mastermind behind it all, National Public Safety Commission Chairman, Shuma Kumon/Kamen Rider Mugen.
One Million Yen GirlOne Million Yen Girl · 2008
One Million Yen Girl
7.22008
MovieDrama
A 21-year-old girl is released from prison, only to deal with the neighborhood gossip about her and family conflicts. She decides to save one million yen, move to where no one knows her and keep repeating the process.
Kamen Rider ZEZTZ: Into the DreamKamen Rider ZEZTZ: Into the Dream · 2026
Kamen Rider ZEZTZ: Into the Dream
2026
MovieActionScience Fiction
Step into the world of ZEZTZ with a special online event featuring a character show, talk show, and live performance!
First LoveFirst Love · 2019
First Love
6.72019
MovieCrimeAction
One night in Tokyo, Leo, a young boxer, meets his first love, Monica, an imprisoned sex worker. Caught up in a drug-smuggling scheme, they find themselves pursued by a corrupt cop, a yakuza, his nemesis, and a female assassin.
Unification of Japan 28Unification of Japan 28 · 2018
Unification of Japan 28
2018
MovieActionCrime
The conflict in Nagoya has settled down, and Joji and Ryoichi are promoted to direct advisors due to their achievements. In addition, a parent-child ceremony with Kawatani will be held. Also, Himuro and Tamura were thinking about how to avenge the killed Shibuya. Meanwhile, the Kyoujinkai, fearing retaliation, seeks help from Hokuriku and attempts to draw in the Kitakoshi-gumi.

Filmography

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Overlord: Bloodline of Brutality IVOverlord: Bloodline of Brutality IV · 2017
Overlord: Bloodline of Brutality IV
2017
MovieCrimeAction
In order to fulfill the fate and great cause of placing his sworn brother, Kiyoharu Washio (Kazuyoshi Ozawa), who had been buried in the darkness until now, as the 12th generation leader of the Naito Shinjuku family, Yuki Kanemaru (Masaya Kato) covered the office with flames and ultimately met his end in self-immolation. Just as he passes away, former 12th generation underling, Hideyoshi Ogami (Norimasa Fujie), is released after serving a long prison sentence. This leads the Naito Shinjuku family into a three-way struggle: Toki Reiji (Yoshiyuki Yamaguchi) and his faction who support Taiga Washio (Haruto Ochiai) as the 13th generation, the faction led by Akira Shiba (Kunihiko Ida) who seeks to put Seiharu in power and rewrite history, and Ogami’s faction. Finally, the president of the Osaka Namba-kai, Masami Yukimura (Takashi Ukaji), reveals himself, and the story is about to connect to a new bloodline!

Naoyuki Jinnai

Unification Of Japan 24Unification Of Japan 24 · 2017
Unification Of Japan 24
2017
MovieActionCrime
After a nationwide yakuza conflict ends, Kyowakai enters a new phase under Wakagashira Himuro Renji (Yasukaze Motomiya), strengthening its territories across Japan. Assistant Wakagashira Tamura (Yoshiyuki Yamaguchi) moves the Kawatani-gumi headquarters to Osaka to secure western Japan. In Tohoku, many groups join the Kanto-based Marugami-kai led by Mita (Shun Sugata), but Hirakawa (Hitomi Matsuda) of Shinyukai refuses and instead joins Kyowakai. Seeking revenge, Marugami-kai Vice Director Tsurumi (Mikio Osawa) prepares for conflict. Within Kyowakai, Wakagashira-hosa Kijima becomes isolated, while former Kudo-gumi members plot a return by targeting Chairman Kawatani (Hitoshi Ozawa). Meanwhile, Ryoichi (Shin Koyanagi), son of the first Gonda-gumi boss, is released from prison and placed under Himuro’s care—bringing new uncertainty.
Unification Of Japan 25Unification Of Japan 25 · 2017
Unification Of Japan 25
5.02017
MovieActionCrime
As Himuro (Yasukaze Motomiya) leads Kyowakai into its new structure, Tamura (Yoshiyuki Yamaguchi) oversees the Osaka headquarters, while younger members like Ryoichi (Shin Koyanagi), son of former chairman Gonda, and Joji (Takashi Kitadai) steadily grow. Meanwhile, Kawatani (Hitoshi Ozawa) is attacked by a hitman sent by Watanabe, the former Kyowakai HQ chief plotting a comeback. Isolated within the executive ranks, Kijima confronts Watanabe but gradually wavers under his influence. Across Japan, tensions rise: in Kanto, Mita (Shun Sugata) and Wakamiya (Hideyuki Kawahara) move on land acquisitions tied to a casino bill; in Okinawa, internal strife erupts; in Shikoku, a boss’s retirement sparks unrest. Yakuza nationwide begin positioning themselves for the coming conflict.
Overlord: Bloodline of Misfortune IIOverlord: Bloodline of Misfortune II · 2016
Overlord: Bloodline of Misfortune II
2016
MovieCrimeAction
After the death of the 12th-generation boss, Gunji Washio, the Naito Shinjuku Family attempts to rebuild under acting boss Kanemaru (Masaya Kato). However, a clash arises with the underboss, Reiji (Yoshiyuki Yamaguchi), who nominates Gunji’s successor, Taiga Washio (Haruto Ochiai), as the 13th-generation boss. This discord fractures the once-unified family. Adding to the chaos, the Tokyo Four Society, which had been held together by Gunji’s absolute leadership, falls into disarray. Shinjuku descends once more into a lawless battlefield of feuding yakuza factions. The conflict between Reiji’s sense of justice and Kanemaru’s vision of leadership traces its origins back to a tragic incident during the era of the 11th-generation boss, Kiryu Washio (Shinzo Horita).

Naoyuki Jinnai

Overlord: Bloodline of Brutality IIIOverlord: Bloodline of Brutality III · 2017
Overlord: Bloodline of Brutality III
2017
MovieCrimeAction
The Naito Shinjuku Family, a hereditary organization where only those of the Washio bloodline can inherit leadership. Under a calculated scheme, Wakagashira Yuki Kanemaru eliminates the 12th-generation leader, Gunji Washio (Hitoshi Ozawa), in a bid to fulfill his fateful mission of establishing Washio Kiyoharu (Kazuyoshi Ozawa), Gunji’s long-buried sworn brother, as the rightful 12th leader. In a shocking turn, Kanemaru engulfs the Naito Shinjuku Family in flames and meets his end through self-immolation. As Shateigashira Hosa (Yoshiyuki Yamaguchi) pushes to restore order by advocating for Taiga Washio (Haruto Ochiai) as the 13th leader, the situation spirals further out of control with the release of Shuyu Ohgami (Norimasa Tomie), a former Naito Shinjuku Family member, from prison...!

Naoyuki Jinnai

GokusenGokusen · 2002
Gokusen
8.02002
SeriesDramaComedy
Newly graduate Yamaguchi Kumiko an idealistic teacher who entered Shirokin High to be a math teacher. Having high hopes for her students, her world turned up side down when she finds out that she'll be teaching the class 3-D the hardest class to take care of. Class 3-D is a bunch of students who looks more like delinquents and trouble makers. The students show no respect to teachers nor a little kindness. Each and every student doesn't like teacher for almost everyone has no good memories of them. The leader of the class is Sawada Shin. He is well respected for there are rumors that he beat a teacher to death. The students try there hardest to bully and make fun of her so she'll quit but all there efforts went to waste because Yamaguchi ain't an ordinary Teacher. Yamaguchi Kumiko is actually the 4th generation heir to Oedo group, a yakuza clan. Even though everyone in there clan wants her to the next leader, she made up her mind and so everyone accepted it.

Shin Takayama

Flat Out Tokyo GirlFlat Out Tokyo Girl · 2012
Flat Out Tokyo Girl
7.62012
SeriesDrama
19-year-old Saeki Rei (Takei Emi) comes to Tokyo. Rei’s redeeming traits are her cheerfulness and distinctive positivity, but everything she does is always unheard of and unsuccessful. Because this foolhardiness causes trouble to the people around her each time, she ends up being called a girl who is unable to read situations. Rei moves to Tokyo with neither a dream nor goal, and is reunited with her father Suzuki Takuya (Watabe Atsuro) who abandoned her mother and her 15 years ago. Although she opposes her father for making her mother miserable, his dissolute life rouses her into action. “This won’t do. I’ve to make this person happy or I can’t move on with my own life!” And so, she runs about with the aim of getting her father remarried in her first experience living in Tokyo. With cheerfulness and positivity, she overcomes various difficulties and slowly changes the people around her too.