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.