Aliens (Japanese: 宇宙人 Uchūjin) are interstellar creatures that come from outer space, rarely appearing in the Yo-kai Watch series.

They notably play a bigger role in the Yo-kai Watch Jam: Yo-kai Academy Y series, acting as the main antagonistic faction and conflict. Mazera is known to be the leader of one of the most known and widespread aliens, which range from canine creatures to human vessels corrupted with Mazera's mind-bending powers.

List of Known Aliens

Minor Aliens

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Alien
Alien.png
Alien Dog
Alien Dog.png
Alien Beasts
AlienBeastGroup.png
AlienBeastMedal.jpg
Alien Crow
Alien Raven.png
Crowman
Alien Raven Fusion.png
Wan in Black
WanInBlack.jpg
Ten in Black
TenInBlack1.jpg
TenInBlack2.jpg
Inu Tokumeitai
Doggy Special Task Force.jpg
Usuke
Usuke.png
Uki Shogun
Uki Shogun.png
Bunny Army
BunnyArmy.png
Hojiro Sameki
Hojiro Sameki.png
Tidas' Wife
TidasWife.png
Tidas' Son
TidasSon.png
Dober Vader
Dober Vader Artwork.jpg
Annan
Ozero

Major Aliens

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Nayu Kuruhoshi
NayuKuruhoshiArtwork.png
NayuKuruMedal.jpg
Nayu Kuruhoshi Stray Medal-0.jpg
NayuYMedal.jpg
Black Army
Black Army Member.png
Big Black
Black Army Giant.png
BigBlackMedal.jpg
Grey Agent
Grey Agent.png
GreyAgentMedal.jpg
Big Black 2
Big Black 2.png
BigBlackMedal.jpg
Rigel
Rigel.png
RigelMedal.jpg
Rigel HG
Rigel HG.png
Dober
Dober.png
DoberuMedal.jpg
Mazera
Mazera.png
MazeraMedal.jpg
Elzemekia
Elzemekia Art.png
EruzemekiaMedal.jpg
Pit Bull
PitBullArtwork.png
DG Trooper
DGTrooperArtwork.png
Zodiaraia
Zodiaraia Artwork.png
ZodaraiaMedal.jpg
Amami Elna & Zodiaraia Y Medal.png
Black Demon
Black Demon Artwork.png
Tidas
Tidas Artwork.png
Elze
ElzeArtwork.png
Mazera Titan
Mazera Titan.png
Mazera Bolt
Mazera Bolt Artwork.jpg

Dog Aliens

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Dober
Dober.png
DoberuMedal.jpg
Pit Bull
PitBullArtwork.png
DG Trooper
DGTrooperArtwork.png
Wan in Black
WanInBlack.jpg
Ten in Black
TenInBlack1.jpg
TenInBlack2.jpg
Inu Tokumeitai
Doggy Special Task Force.jpg
Dober Vader
Dober Vader Artwork.jpg

Trivia

  • It is unknown if the aliens have a connection with the Members of the Mikakunin Tribe, despite sharing similar appearances and having a similar UFO design to the one Mazera's force uses.
  • Akihiro Hino was inspired by the 1989 video game Last Armageddon when he made the Aliens as the main antagonists of the Yo-kai Academy Y series. He also wanted to make the player fight something that the player doesn't come across normally in another dimension.[1]
  • Despite typically referred to as "Uchūjin" in the Japanese anime, Aliens can also be referred to as  "Eirian" (エイリアン), or "Seijin" (星人).
  • Despite being framed as the main antagonistic faction of the Yo-kai Academy Y series, multiple of the aliens have joined forces with the YSP Club, the most notable being Nayu Kuruhoshi.
  • https://twitter.com/AkihiroHino/status/1339896472964194304?s=20
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