|Home world:||Planet Ateria|
|First appearance:||Return of Ultraman episode 49 (mentioned)|
|Latest appearance:||Ultraman Mebius episode 36 (mentioned)|
|Height:||Same as Zamsher|
|Weight:||Same as Zamsher|
|Affiliation:||Alien Mysteler (Enemy)|
Alien Ateria (アテリア星人 Ateria Seijin) were a race of aliens that were mentioned in Return of Ultraman episode 49 "Space Warriors-Your Name is MAT". They were mentioned again in Ultraman Mebius and "Ultraman Mebius Archive Document". They finally physically appeared in the gaiden novel for Mebius "Sword for Defending".
Return of Ultraman
In Return of Ultraman, it was stated that Alien Ateria were a race of aliens that were fighting in a war with Alien Mysteler for thousands of years. It is unclear how they physically looks like in this series.
Sword for Defending
An Alien Ateria appeared in this gaiden novel for Mebius. Planet Mysteller and Planet Ateria are told to be close to each other, both races tried to acquire a position in the Empera Army by destroying the Sun but failed due to intervention by Alien Psychokino. In addition, Alien Psychokino says that "Alien Ateria will not lose to Alien Mysteller if they are as belligerent as them.
Alien Ateria has about the same height as Zamsher (53m). A portion of the figure is depicted in illustrations. Showing the ability to change a part of the body to the sword, he tries to kill Alien Psychokino but was stopped by Zamsher, who killed him by piercing him in the forehead.
Powers and Abilities
|Return of Ultraman Kaiju & Seijin|
|Takkong | Zazahn | Arstron | Sadola | Detton | Kingsaurus III | Gudon | Twin Tail | Gorbagos | Ghostron | Dangar | Stegon | Mognezun | Shugaron | Seamons | Seagorath | Eledortus | Terochilus | Bemstar | Sartan | Magnedon | Beacon | Gokinezula | Zanika | Vacuumon | Kupukupu | Kingstron | Zagorath | Nokogilin | Gronken | Varricane | Yadokarin | Oxter | Plooma | Alien Zelan | King Maimai | Alien Mates | Muruchi | Leogon | Pris-Ma | Draculas | Re-Seagorath | Re-Bemstar | Black King | Alien Nackle | Alien Varduck | Alien Black | Snowgon | Alien Baltan. Jr | Builgamo | Alien Stora | Paragon | Alien Grotes | Kodaigon | Granadas | Alien Centaurus | Robonez | Alien Cygnus-61 | Alien Messie | Alien Zoole | Red Killer | Femigon | Yametaranese | Sasahiller | Alien Ateria | Alien Mysteler | King Bockle | Alien Bat | Zetton II|