Albedo

Albedo is a villain in the Cartoonverse. He is the negative version of Ben Tennyson, a former Galvan who was changed into such a state due to a failsafe in his own device, the Ultimatrix. Albedo is set to debut in Ben 10: Ultimate Alien. He is portrayed by Alan Rinehart, Ben's actor.

Personality
Albedo considers himself the rightful owner of the Omnitrix, hence why he creates his own in response to the Omnitrix being left in the hands of Ben, who he deems entirely unworthy. Due to being trapped as a negative version of Ben, Albedo also has some of his habits and mannerisms, which he considers repulsive.

Appearances
Albedo is set to appear in two films in the Cartoonverse so far.
 * Ben 10: Ultimate Alien
 * Protectors of Earth: The Negative Ten

Powers
Albedo has the enhanced intelligence of the Galvans. This, paired with his ability to transform into aliens using his Ultimatrix, makes him a rather formiddable foe, as he is far more knowledgable about the species at his disposal than Ben.

With the Ultimatrix, Albedo is able to evolve his transformations, turning them into more powerful, weaponized versions of the original, which, while bringing about new weaknesses, work to fix the flaws that the original forms had.

Weaknesses
Albedo's arrogant personality, even more arrogant than Ben's at times, can be his downfall, even with his intellectual advantage over Ben.

The amount of transformations Albedo has at his disposal (not including Ultimate forms) is limited to how many Ben has access to.

Albedo is unable to access his Galvan form permanently. The failsafe in Ben's Omnitrix prevents him from fully remaining in his Galvan form even in the event of master control.

Ben 10: Ultimate Alien
TBA

Protectors of Earth: The Negative Ten
TBA

Trivia

 * In the original canon, Albedo created a knock-off Omnitrix which activated the failsafe of the original, and then later created the Ultimatrix. In this canon, however, he creates the Ultimatrix first in order to get an advantage over Ben and prove himself the rightful owner.