Sublimino

Sublimino is also a magician, but his method was to hypnotize people to do his robberies for him. He carries an old chain watch with him and says, "Welcome, today I am going to take you through a journey to the mysterious realm known as the mind..." Although he has power, he short and not much of a fighter as he is not strong and can be easily stopped. He can also be rendered useless if his old chain watch is gone.

Charmcaster

Charmcaster is Hexlord's niece and also a magician. But, unlike her uncle, she dosen't carry a staff. She carries a magical bag of tricks. Some examples are:

Mini clay figures that rapidly grow to be sent out to attack
Explosives charms
Metal rings that can be shot out or can also grow to big sizes

For a young magician, Charmcaster is powerful. With the ability to levitate, shoot out blasts of energy and use spells, that's how Charmcaster got her name. Her bag also seems to be "living". It can jump around until it reaches back to her side and can even hold Hexlord's staff. This being virtually impossible as the bag is somewhat small yet it can still carry the staff which is several feet tall.

Dr. Vicktor

Dr. Vicktor was the last of the three aliens whose DNA was absorbed into the Omnitrix, giving Ben the new alien, Benvicktor. He was also working for Ghostfreak, his mission to direct the Mummy and the Wolf. Benvicktor is a Frankenstein-like alien, disguising himself as a Human working in a space station, partially to prepare to launch the Mummy into space. He has an extremely high amount of endurance, able to take a few laser blasts and other attacks without even moving from the same spot. He also seems to have very good reflexes, being able to stop XLR8 from doing a suprise attack on him. Dr. Vicktor's powers are similar to Benvicktor's, with an electro-magnetic body, the ability to shoot out bolts of electricity, and to control and generate electricity. The differences is that Dr. Vicktor has a large left eye both are purple, and generates purple electricity, whereas BenVicktor has two normal sized green eyes, and generates purple electricity.

The Mummy

The Mummy was another one of the Aliens absorbed into the Omnitrix, Giving Ben the new Alien, Benmummy. The Mummy was also working for ghostfreak, his mission to control everything from space. The mummy also has similar powers to BenMummy, with the ability to send out many tentacles from anywhere over his Body. Although BenMummy talks, the Mummy was mute, not speaking at all. The differences between Benmummy and the Mummy is that the Mummy's eyes, and the silts between his arms and legs are purple, and his head is slightly bigger. Whereas Benmummy's eyes, and slits between his arms and legs are green, and his head is slightly smaller.

The Wolf

The Wolf was one of the aliens whose DNA was absorbed into the Omnitrix, giving Ben the new alien, Benwolf. At first people thought that The Wolf was the Yenaldooshi, the wolf-creature of Bad-luck. But after a failed attempt of trying to destroy it with a sliver pendant, they realized that he was actually an alien. With similar powers to Benwolf, The Wolf also has the sonic howl. But the difference is that The Wolf's eyes and sonic howl is Purple in colour, whereas Benwolf's eyes and sonic howl is Green in colour. Later, the people realized that The Wolf was one of the aliens working for Ghostfreak. His mission was to control a network reciever in New Mexico.

Clancy

Clancy is a Bug-Guy, literally. He lives in his old home, which looks like it was about to collapse anytime. He has complete control over bugs, giving him the ability to send out a large amount of poisonous insects like Hornets, Black Widow Spiders, and many more to attack. He can also cover his body in cockroaches, to make it a "Bug-Suit", allowing him to withstand fires and radiation.

Vulcanus

Vulcanus is a Detrovite who was working with Six Six to help him create an explosive chemical which was powerful enough to destroy an entire galaxy. He has extremely strong armor which can withstand even lava. Matching his strong armor, he also has immense strength. He might even be stronger than Fourarms, but he is not bigger than him.

Ghostfreak (True form)

GhostFreak was originally from the Omnitrix, But like he said, his consciousness even exists in even a small strand of his DNA. So technically, he has been alive in the Omnitrix the whole time. When he reveals his true form, he has an advantage but at the same time, a disadvantage. The Advantage was that he became more powerful. But by revealing his true form, he ripped out his sun-shielded skin, making his weakness sunlight. His true form is:
-A skeletal Head with his mouth above his eye
-One pinkish eye below his mouth
-An even hoarser voice
-A larger, stronger body
-More eye tracks around his body
-Spikes growing out of his shoulders
-Several large, strong tentacles sticking out of his stomach
He can also fire out a laser beam from his tentacles from his stomach. He has also learnt how to possess people now and any attacks cannot harm him.

Enoch

Enoch is the leader of a gang called the Forever Knights, a gang of knights who find alien artefacts and extracts parts from them to upgrade their own weapons like laser blades and laser staffs. Their base is a castle an their identities are unknown as they wear maetal masks over their faces all the time.

Hexlord

Hexlord is a highly experienced sorcerer, with the ability to fire out bolts of lightning and lasers with his magical staff. Not only is he armed with a magical staff, he also has 5 charms, each with maximized abilities of fire, reincarnation, luck, flight and levitation. He also seems to have a high amount of endurance.

Kraab

Kraab was the other bounty hunter sent by Vilgax. He was mostly mechanical and is armed with several powerful weapons. His right hand is a huge crab-like claw, hence the name. His claw can even smash metal by crushing it. When he opens his claws, there is also a blaster inside which fires out an assortment of lasers or chemicals that could aid him in battle. he also has a laser samurai sword to shred metal. His mode of transport is mainly digging underground by spinning his four pincer-like legs rapidly to create a drill.

Six Six

Six Six was one of the bounty hunters sent out by Vilgax to retrieve the Omnitrix. He is well armed and fully covered in armour, not revealing any part of him. He has gadget compartments located all around his armour, and armed with:
A Missile launcher
Blaster rifle
Grenades (Stun/Explosive)
Jet pack
Laser hand-held Saw blade
Electro-repelling beam (shorts out computer systems)
He also has weird stubby arms coming out of his shoulders to help him launch grenades while he is firing his other weapons.

Acid Breath

Acid Breath is the last of the three of Zombozo's minions. Like his name suggests, Acid Breath has Acid Breath. He is supposedly to be the leader of the trio. With the ability to spit out acid from his mouth in liquid or vapour form, he can use his acid to corrode even an anvil within seconds. Although he has the ability to corrode almost everything, by jamming his mouth with anything, including something as simple as paper balls, it prevents him from destroying anything.

Thumb Skull

Thumb Skull is another one of Zombozo's Minions. He has a hulking body, with incredible strength and endurance. The shape and hairstyle of head also looks like a thumb, hence, the name. Thumb Skull can actually 'break' an iron bar into two, defining him as a very strong guy.

Frightwig

Frightwig is a girl minion of Zombozo's circus. She has the ability to control her hair and use it as extra hands/tentacles. Her hair also has some strength, allowing her to even bend a thick bar of iron. She also has added some metal ball bearings to the tips of her hair, allowing her to swing them at people, using them as weapons.

Zombozo

Zombozo was a vampire-like creature disguised as a ringmaster/clown in a circus. He feeds on other people's happiness, and fills them with sadness and tiredness. Originally coming from the words Zombie and Bozo, he would use his tricks to distract and feed on other people's happiness while he sends out his three minions, Frightwig,Thumbskull, and Acid breath, to steal the riches of the city that they were traveling in.

Kevin 11

Kevin 11 was originally a human with the ability to absorb energy to use it for himself. But after a fight with Ben, he accidentally absorbed the Omnitrix's power allowing him to shape shift into the 10 aliens of the Omnitrix. But, he used his powers for too long and all the 10 aliens' DNA got mixed into his own DNA, turning him into a freak, permanently. But he has all the 10 aliens' DNA:
Fourarms's body structure and his left eyes
Diamond head's right arm
Heatblast's left arm
Wildmutt's lower arms
Upgrade's back
Stinkfly's wings
Ripjaw's antennae
Grey matter's right eye
Ghostfreak's eye tracks
XLR8's tail
But, his powers have a downfall. Because he has 10 aliens' DNA, he only has 1 tenth of every aliens' powers. But, by combining his powers together, it makes up for his loss of power. For example: He can combine Stinkfly's goo+Heatblast's fire to create an explosive.

Dr. Animo

Dr. Animo was once a research scientist doing research on animal when he was arrested for illegal experimentations on animals. When he was released from prison, he spent his life in secrecy, until he came out, with green skin, and a new plan, to take over the world. He has created a new device called the "transmodulater", with the ability to maximize any animal to its full potential and recreate any dead living creature, including a prehistoric dinosaur or mammoth.

Vilgax

Vilgax is Ben's toughest enemy by far. He seems to be immune to a lot of attacks. Some of them are, Heatblast's fireballs, Diamondhead's diamond shards, Fourarms' strength, cannonbolt's cannonball ram, and a lot more. He is a gigantic alien, being the same size as Fourarms, or possibly even bigger. He has immense strength and endurance, and he also has some machinery in his arms which allow his arms to grow to an even bigger size, giving him even more strength.

Part (2)

Hey... Ran out of known aliens... Now here are the villians...

Eye Guy

Eye Guy is an alien with a body covered in eyes, hence his name. But Ironically, he has no eyes on his face. He has a big eye on his stomach and he has a body covered in green eyes of every size, making it impossible for anybody to sneak up on him. He controls every eye and can see from different points of view. But, he can also use his eyes to shoot out beams and lasers. What's more, he can combine a few eyes together to make a bigger eye, producing an even more powerful beam.

Way Big

Like his name suggests, Way big is THE largest alien in the Omnitrix. Standing at a height of 100 feet tall, he was locked away deep inside the Omnitrix. He can crush an entire army with just a stomp of his foot. His massive body also gives him added strength and endurance. Giving him to the ability to protect himself from laser-based attacks from droids or fling an object far away into space.

Ditto

Ditto is an alien with the ability to duplicate himself to an unlimited amount. Even when he clones himself to any amount, his power is still not divided into fractions, which is a good thing because then each Ditto would still have the same amount of power as the oringinal Ditto. But he has a downslide which is that when one Ditto gets injured, all of the other Dittos will also feel the pain. So, if one Ditto dies off, all of the other Dittos will also die off.