|Home World||Osmos V|
|Abilities|| Energy Absorption
Life Force Absorption Matter Absorption Enhanced Strength Enhanced Durability
|Voice Actor||John DiMaggio|
|First Appearance||Core of the Matter|
Aggregor was a villain in Ben 10: Ultimate Hero.
Instead of attempting to absorb the power of the five aliens from the Andromeda Galaxy, Aggregor took notice of Ben Tennyson and decided to absorb the Ultimatrix to gain all of Ben's alien abilities.
When Aggregor first captured Ben, along with Gwen and Kevin, he was thwarted and the three escaped. However, Aggregor tricked the gang into thinking he was hiding on the Plumbers Academy. This allowed him to bring a surprise attack, giving him the time to capture Ben. While attempting to head to Osmos V, Aggregors Warship is shot and ends up crashing to Earth. Gwen, Kevin, and Max track Aggregor and Ben to Los Solodad, where the Infantry Pump is being used to give Aggregor a proper absorption of the Ultimatrix aliens. Aggregors plan fails when Gwen forcefully shuts down the Infantry Pump, creating a feedback pulse that kills Aggregor.
Powers and Abilities
Same as UA.