|First Appearance||Ben 10: Race Against Time|
Eon is the Omnitrix's DNA sample of a Chronian from the planet Chronic that was featured in an alternate timeline.
Tall guy in a black trench coat. Omnitrix is somewhere.
Eon can manipulate time. This involves starting and stopping it, changing its speed, and firing time rays. He also has enhanced strength..
Y: Means that this alien was used by Ben in that episode.
N: Means that this alien was not used by anyone in that episode.
S: Means that this alien was used by someone other than Ben in that episode. (hover over the letter to see by who)
|Ben 10 Aliens|
|Original 10 (Ben 10)|
|Heatblast | Wildmutt | Diamondhead | XLR8 | Grey Matter | Four Arms | Stinkfly | Ripjaws | Upgrade | Ghostfreak|
|Additional Aliens (Ben 10)|
|Cannonbolt | Wildvine | Blitzwolfer | Snare-oh | Frankenstrike | Upchuck | Ditto | Eye Guy | Way Big | Eon (Alien)|
|Future Aliens (Ben 10)|
|Spitter | Buzzshock | Atomix | Snakepit | Sandbox | Shellhead|
|New 10 (Ben 10: Alien Force)|
|Swampfire | Echo Echo | Humungousaur | Jetray | Big Chill | Chromastone | Brainstorm | Spidermonkey | Goop | Alien X|
|Additional Aliens (Ben 10: Alien Force)|
|Lodestar | Nanomech | Rath|
|Ben 10: Ultimate Alien aliens|
|Water Hazard | AmpFibian | Armodrillo | Terraspin | NRG | Fasttrack | ChamAlien | Shocksquatch | Eatle | Clockwork | Jury Rigg|
|Ultimate Humongousaur | Ultimate Swampfire | Ultimate Spidermonkey | Ultimate Big Chill | Ultimate Cannonbolt | Ultimate Echo Echo | Ultimate Wildmutt | Ultimate Way Big | Ultimate Ben (Alternate Future)|
|Ben 10: Omniverse aliens|
|Feedback | Bloxx | Gravattack | Crashhopper | Articguana | Ball Weevil | Walkatrout | Pesky Dust | Molestache | The Worst | Kickin Hawk | Toepick | Astrodactyl | Bullfrag|
|Power Of The Omnitrix Aliens|
|Rocks | Squidstrictor|
|Stink Arms | Diamond Matter | Heat Jaws|