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No one escapes Aggregor.
~ Aggregor

Aggregor is the main antagonist of Season 1 of Ben 10: Ultimate Alien. He is an alien warlord who seeks 5 aliens in order to absorb their powers so he can Obtain the Map of Infinity allowing him to enter the Forge of Creation so he can absorb the powers of a Baby Celestialsapien, and use it to become omnipotent and conquer the universe.

He was voiced by the famous voice actor, John DiMaggio, who also played Bender in Futurama.

Personality

A violent, cruel, arrogant, and malevolent Osmosian, Aggregor's evil was that which made even Ben Tennyson take him seriously. Sadisitc, ruthless, and cold, Aggregor's selfish pursuit of power has destroyed many innocent lives, and was remorseless over kidnapping peaceful aliens if only so he could abuse their powers for his own advantage.

Biography

Aggregor first appeared in the Ben 10: Ultimate Alien first episode Fame. He first appeared after Ben defeated one of his captives, Bivalvin, and then captured him. He had five alien captives: Bivalvin, Galapagus, P'andor, Andreas and Ra'ad, and intended to absorb all of their powers. In the 10th episode of Ultimate Alien, he took his captives to Los Soledad to finally absorb their powers and succeeded (after ignoring the warning from Ben's former nemesis and current best friend, Kevin). The reason for absorbing his captives is to gain their powers (to become Ultimate Aggregor) in order to find 4 pieces of an artifact called the Map of Infinity in order to find a place known as the Forge of Creation.

Aggregor (Powered up)

Aggregor (Power-up)

He finds the first piece of the Map of Infinity in the episode with the same name in a temple full of traps on a planet that's half sun-like and half frozen. He finds the second piece of the map in the episode Deep. He finds the second piece on an all water planet. The third piece is found in Where The Magic Happens, where he takes the piece from the warlord from Charmcaster's home dimension (also the warlord that Aggregor took the piece of the map from is the same race as one of his alien captors, Galapagus). The fourth and final piece of the map is found in a planetoid known as the Perplexahadron in the episode with the same name from its guardian known only as the Sentinel. He finally finds the Forge of Creation in the episode with the same name and his "Ultimate Prize" was revealed to be a newly born Celestialsapien. He fights off both 10 and 16-year-old Ben, Gwen and Kevin, then proceeds to absorb the newborn Celestialsapien. But as he was about to absorb ultimate power, he was stopped by a once again mutated Kevin, having absorbed the Ultimatrix from 16-year-old Ben to stop him (even though 10-year-old Ben offered him to absorb his Omnitrix) and then, after he had gotten Aggregor away from Alien X, Kevin then absorbs Aggregor's powers as well, reverting Aggregor back to his normal state and left him laying unconscious. After that, Aggregor's fate is left undetermined. It was later revealed in Night of the Living Nightmare that he is currently incarcerated.

Ben 10: Omniverse

Aggregror did not appear in the fourth series, but is mentioned in a few episodes.

Background

Aggregor's race is the same as Ben's current friend, Kevin (they're both members of a subspecies of humans called Osmosians). His powers are mostly the same as Kevin's- matter absorbtion and energy manipulation. Aggregor is also noted for his high intelligence, demonstrated in how he tricked the protagonists to reach his goal for him, and his genre savvyness. He used his powers to activate a time transporter to absorb his captor's powers and succeeded. He is more of an intergalactic threat than Ben's ultimate nemesis, Vilgax. Like Vilgax, though, Aggregor also uses droid minions.

Navigation

           Ben 10 Villains

Main Villains
Vilgax | Zs'Skayr | Aggregor | Aloysius Animo | Hex | Highbreed | Maltruant

The Faction
Khyber | Malware | Dr. Psychobos | Khyber's Panuncian | Ultimate Panuncian

Magic
Charmcaster | Michael Morningstar | Adwaita

Aliens
Argit | Looma Red Wind | Skurd | Great One | Mr. & Mrs. Mann | Camille's Ex-Boyfriend | P'andor | Sunny | Prisoner 775 | Corruptura

Forever Knights
Forever King | Driscoll | Enoch | Joseph Chadwick | Sir George | Sir Morton | Winston | Forever Ninja

Highbreed
DNAliens | Mizaru | Simian

Negative 10
Rojo | Clancy | Sublimino

Flame Keepers' Circle
Diagon | Conduit Edwards | Esoterica

Circus Freaks
Zombozo | Acid Breath | Frightwig | Thumbskull | Zombie Clowns

Incursean Empire
Milleous | Attea | Raff

Bounty Hunters
Sixsix | Sevenseven | Eighteight | Synthroid | Sunder

Zs'Skayr Minions
Dr. Viktor | Yenaldooshi | Mummy | Crujo | Lord Transyl

Vreedles
Octagon Vreedle | Rhomboid Vreedle | Isosceles Right Triangle Vreedle

The Hive
Elena Validus | Nanochips | Decoy Queen

Psyphon's Gang
Bug-Lite | Bubble Helmet | Liam | Gorvan | Sweet-Eels Sparklefunk | Tummyhead

Fistrick's Gang
Hoodlum | Fistina

Rooters
Proctor Servantis | Phil Billings | Swift

Vengers
Captain Nemesis | Kangaroo Kommando | Will Harangue

Future
Kevin 11,000 | Sploot | Subdora

Evil Bens
Eon | Albedo | Bad Ben | Mad Ben | Nega Ben

Other Villains
Blue Leader | Collectimus | Heatbat | Hulex | Jonah Melville Kolar | Captain Kork | Kundo | Mr. Beck Morgg | Mutant Reptile Leader | Nyancy Chan | Poltroon | Red Leader | Seebik | Solid Plugg | Trumbipulor | King Xarion

Robots
Slix Vigma Computron | Otto | Stalker

Albedo's Aliens
Ultimate Rath

Nemetrix Aliens
Buglizard | Crabdozer | Hypnotick | Mucilator | Omnivoracious | Slamworm | Terroranchula | Tyrannopede | Vicetopus

Redeemed
Kevin Levin | Zed | Blarney T. Hokestar