Ben Tennyson

Ben 10, is the main protagonist of the series. When he is 10 years old (fifteen in Alien Force, sixteen in Ultimate Alien), he finds a powerful watch-like alien device, the Omnitrix, which fastens onto his wrist and gives him the incredible power and ability to transform into ten (later more) super-powered aliens. Unable to remove or destroy it, he uses his new powers and abilities to become a superhero, dealing with both aliens and earth threats, while trying to escape the alien warlord Vilgax, who pursue him relentlessly in order to retrieve the Omnitrix.

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