Gate Keepers 21
It has been thirty two years since the Invaders have been defeated, and A.E.G.I.S is dismantled, with only a few Gate Keepers left. One of them, Ayane Isuzu learns that Machine General and Devil Count are back and they must save the Earth once more.
Where to watch in Japan
Available to stream with U-NEXT, Anime Times Amazon Channel, dAnime Amazon Channel, Amazon Prime Video.
U-NEXT
Anime Times Amazon Channel
dAnime Amazon Channel
Amazon Prime Video Streaming in other countries
Sorted by distance from 
Japan
No other streaming countries match this selection.
Cast, directors & writers
Ikue Otani
Ayane Isuzu (voice)
Yukiko Hanioka
Miu Manazuru (voice)
Tomokazu Seki
Nazo / Reiji Kageyama (voice)
Mamiko Noto
Ghost Girl (voice)
Sakura Nogawa
Satoka Tachikawa (voice)
Yuriko Hishimi
Saemi Ikeda (voice)
Masami Suzuki
Yukino Houjo (voice)
Chinami Nishimura
Chinami Watanabe (voice)
Hiromi Konno
Female Student A (voice)
Kayo Deguchi
Female Student B (voice)
Hidekatsu Shibata
Devil Count (voice)
Takehito Koyasu
Daichi Hashimoto (voice)
Takahiro Sakurai
Shun Ukiya (voice)
Naoko Takano
Naoko Itou (voice)
Hiroshi Yamaguchi
Director · Writer
Fumitoshi Oizaki
Director
Kenichi Takeshita
Director
Yoshiji Kigami
Director · Writer
Junichi Sato
Director · Writer
Kazuyoshi Katayama
Writer
Taichi Hashimoto
Writer
Mahiro Maeda
Writer
About streaming Gate Keepers 21 in Japan
In Japan, the listed subscription streaming options for Gate Keepers 21 are U-NEXT, Anime Times Amazon Channel, and dAnime Amazon Channel.
Amazon Prime Video is listed with a free streaming offer for Gate Keepers 21 in Japan. Check the service for account requirements.
Anime Times Amazon Channel and dAnime Amazon Channel are listed as channel options. Check the channel's subscription requirements on its host platform before signing up.
These listings are for the show and do not confirm that every season or episode is included. Use the season selector to check a specific season.
Automatically summarized from TMDB watch-provider listings supplied by JustWatch. Listings fetched . Streaming availability can change. Rental and purchase offers are not included.