Abaddon

Abaddon is the main villain of the first season of Ben 10: Ultimatrix Forever. His species is unknown, however, he has been shown to have several undercover agents in the Plumbers academy of Osmosian origin. He also has several contacts on Osmos IV.

Appearance
Abaddon looks almost completely human. There are very few differences between him and a human. On the backs of his hands there are six little bumps on either side. His eyes are constantly bloodshot, whether his all species has this is unknown.

Powers and Abilities
The only powers Abaddon appears to have are the fact that he can hover slightly above the ground. He is also shown to have the ability to absorb small amounts of electricity and shoot it at whatever he wants.

Ben 10: Ultimatrix Forever
At the end of Unknown Alien 1, Abaddon appears at the old African village to imprison Zentria. He tells Zentria that everything will be alright. However, when teleported to Abaddon's ship, an ear piercing scream is heard, indicating Zentria was killed. Zentria is then heard saying, "Stage two, complete!" What stage one was is currently unknown.

Appearances

 * Unknown Alien 1
 * Battle of the Heroes
 * Unknown Alien 2
 * Unknown Alien 3
 * the Trinity (Part 1)
 * the Trinity (Part 2)
 * the Trinity (Part 1)
 * the Trinity (Part 2)
 * the Trinity (Part 2)

Trivia

 * He had a Mark 8 Plumbers ship. Probably stolen. However, he could be a former plumber.
 * While searching for the three 'Uknown Aliens', Abaddon is revealed to be cruel and merciless.