TV series
Gate Keepers 21
2002–2003, Japanese. Created by Hiroshi Yamaguchi.
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.
- Seasons
- 1
- Episodes
- 6
- Episode length
- 26 min
- Status
- Ended in 2003
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Where to watch Gate Keepers 21
Gate Keepers 21 isn’t listed on any OTT platform in India yet.
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Latest episode
S1 E6: The Sound of Wings
Aired 8 January 2003
Seasons 1
Cast & crew
- Hiroshi YamaguchiCreator
- Ikue OtaniAyane Isuzu (voice) · 6 ep
- Yukiko HaniokaMiu Manazuru (voice) · 6 ep
- Tomokazu SekiNazo / Reiji Kageyama (voice) · 6 ep
- Mamiko NotoGhost Girl (voice) · 6 ep
- Sakura NogawaSatoka Tachikawa (voice) · 4 ep
- Masami SuzukiYukino Houjo (voice) · 4 ep
- Chinami NishimuraChinami Watanabe (voice) · 3 ep
- Naoko TakanoNaoko Itou (voice) · 3 ep
- Takehito KoyasuDaichi Hashimoto (voice) · 2 ep
- Yuriko HishimiSaemi Ikeda (voice) · 1 ep
- Hiromi KonnoFemale Student A (voice) · 1 ep
- Kayo DeguchiFemale Student B (voice) · 1 ep
Details
- First aired
- 24 April 2002
- Last aired
- 8 January 2003
- Original title
- ゲートキーパーズ21
- Language
- Japanese
- Country
- Japan
- Type
- Video
- Rated
- TV-PG
Check ratings elsewhere
News & fan talk
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Gate Keepers 21: quick answers
Is Gate Keepers 21 worth watching?
Gate Keepers 21 doesn’t have enough ratings for a verdict yet.
How many seasons of Gate Keepers 21 are there?
Gate Keepers 21 has 1 season and 6 episodes, about 26 minutes each.
Is Gate Keepers 21 finished?
Yes. Gate Keepers 21 ended in 2003, so you can watch the whole story.
Which OTT platform is Gate Keepers 21 on?
Gate Keepers 21 isn’t listed on any OTT platform in India yet. (Checked 6 November 2026.)
Gate Keepers 21 parents guide: is it suitable for kids?
Gate Keepers 21 is rated TV-PG. That rating means it is generally fine for children.
What shows are like Gate Keepers 21?
If you liked Gate Keepers 21, try The Heroic Legend of Arslan, Vampire Knight, Fate/Grand Order Absolute Demonic Front: Babylonia.
Who created Gate Keepers 21?
Gate Keepers 21 was created by Hiroshi Yamaguchi and stars Ikue Otani, Yukiko Hanioka, Tomokazu Seki.