The Good Guys
Rival turned friend, this character has the ability to absorb different materials allowing him to fight.
Who is Kevin E. Levin?
This alien was the first one Ben ever turned into.
Who is Heatblast? (Pyronite)
Ben lives in this city, where most of Alien Force, Ultimate Alien, and Omniverse take place.
Where is Bellwood?
This villain uses mutated animals for his evil schemes.
Who is Dr. Aloysius James Animo?
Throughout the series, Ben Prime has wielded this many different versions of the Omnitrix.
What is 4?
Ben Tennyson's middle name is this, named after a producer of the show.
What is Kirby?
This alien escaped from the Omnitrix in the original series and became a main antagonist to Ben.
Who is Ghostfreak/Zs'Skayr? (Ectonurite)
Bad aliens are sometimes sent here, an interdimensional prison.
Where is the Null Void?
Many villains in Ben 10 desire to steal Ben's Omnitrix, but this one has been after Ben since the beginning and probably wants it the most.
Who is Vilgax?
Grandpa Max has been confirmed to have bagged this many alien baddies throughout the shows run.
What is 2?
This character is a Galvin and is the creator of the Omnitrix.
Who is Azmuth?
While Ben was transformed into this alien, he laid eggs and had babies. (Yes really)
Who is Big Chill? (Necrofriggian)
The realm of magic, also known as this, is only accessible by summoning the Door to Anywhere, and speaking the realms true name.
What is Legerdomain?
This clown feeds off people's laughter and ironically quelled Ben's fear of clowns.
Who is Zombozo?
Ben has a scar in the shape of this East coast state on his back.
What is New Jersey?
This character is an actual plumber who Siphon, one of Vilgax's lackies, confused to be the real Vilgax and spent all day helping him snake drains.
Who is Bill Gacks?
This alien contained the full blast of the big bang to prevent the universe from being destroyed.
Who is Feedback? (Conductoid)
This place is where Celestialsapiens live and can only be found with the Map of Infinity, as it exist outside of the universe.
Where is the Forge of Creation?
These brothers cause destruction wherever they go and are named after shapes like the rest of their siblings.
Who are Octagon and Rhomboid Vreedle? (The Vreedle Brothers)
This President was the first ever plumber and got the name from Ben when he traveled back in time to defeat a time travelling villain.
Who is George Washington?
This alien was once an evil highbreed until he was healed by Ben and had his out look on life changed, helping Ben stop the highbreed invasion.
Who is Reinrassig III, seventh son of the Noble Highbreed House of Di Razza, direct descendant of the Pure Blooded High Order of Rasecht, also known as Reiney?
In season 4, episode 7, Ben 10,000 name drops these three aliens which we never see Ben use, although official concept art for them does exist.
Who are Shellhead, Sandbox, and Snakepit?
This alternate timeline is where Ben Prime discovered Ben 23 while in search for the 23rd Mr. Smoothy location.
What is Dimension 23?
In this villain's debut appearance, he cut off Ben's hand sending Ben to another dimension while the hand remained alive and sentient, trying to find help.
Who is Sunder the Retriever?
The Annihilarrgh is the shortened name of a device of incredible proportions, able to create and destroy universes with the press of a button. Its full name is this.
What is the Annihilarrgenesistoriathimiorgost?