|Fake Ultraman Joneus|
|Age:||Less than a year|
|Home world:||Planet Gilo|
|First Appearance:||The☆Ultraman Episode 40: "Clash! Ultraman vs. Ultraman"|
|Number of Appearances:||1|
As Gilos attacked the city, Fake Joneus arrived and chase it off in a staged battle. Not long after, the imposter was again unleashed on Gilos. The tornado kaiju retreated as planned, but the false warrior suddenly attacked the Science Garrison. Choichiro Hikari managed to call forth Ultraman Joneus and the battle between the Ultras began.
The hero fought his doppelganger, both of them blasting each other and smashing one another with titanic blows. As Gilos circled overhead, they both began to fire their Planium Rays. The beam war raged on, each one unable to get the upper hand on the other. After almost a minute, Joneus pulled through and his beam ripped through the fake’s. Imitation Joneus was blasted apart, its body vaporizing in a gigantic explosion that ripped through its entire being.
- Flight: Thanks to his technology Fake Joneus can fly under his own power.
- Planium Ray: Despite being a robotic imitation Fake Joneus can fire the Planium Ray thanks to the technology in his arm, however his version was weaker than the genuine article.
- Despite his name being Ultraman X in the English dub, it is not mentioned within the show itself, only in official manuals.
|The☆Ultraman Kaiju & Seijin|
|Seagra | Spiral | Wanigodon | Red Smogy | Tough Gillan | Tough Gillas | Tough Gillaco | Firebadon | Combugon | Robot No.101 | Alien Baltan IV | Mikonos | Dolfiego | Xalome | Hectore | Liquid Monster | Opt | Garadoras | Xyclon | Gellon | Gadon | Goglan | King Moa | Badan | Islanda | Gerada | Janyur | Bedoran | Bader Group | Bagon | Janyur III | Zaanmoth | Zanba | Dragodos | Death Balan | Gibaaroga | Red King | Aboras | Banila | Earthtron | Ghostron | Gokinezula | Alien Baladon | Dabaran | Jadan | Jagon | Skeldon | Garbados | Megasaura | Babilar | Gamiba | Imedo Being | Goadarion | Jinario | Groteng | Plazoon | Agujon | Deathpower | Zuma | Gurol | Darantulas | Alien Noa | Heller | Roygar | Panther | Heller Army | Gumons | Hell Cat | Orolan | Gilos | Gilo | Fake Ultraman Joneus | Hatari | Large Battleship | Dostony | Spader | Caperadon | Alien Scien | Golding | Gedon | Hella Umaya | Heller Fleet | Makdatar|