Ben Tennyson is the main hero of the Ben 10 franchise. He is a part-time Magister with the Plumbers and runs his own team on Earth-19.
In Season 1, Ben looks similar to his appearance in Ultimate Alien. In Season 2 and 3, he looks like a cross between his Omniverse version and his future Ultimate Alien version. By Generations, he appears similar to Ben 10000 from Ultimate Alien, though less muscular.
Powers and abilities
Excellent leadership skills
Omnitrix: It is unknown which version of the Omnitrix Ben has, although the Omnitrix he has in Generations is different than the one he had in the original series.
In the early summer, Ben went on a camping trip with Gwen and Max when something crashed down into a forest by their campsite. After Ben went to see what the meteor was, the Omnitrix attached to his wrist. He has been fighting crime and aliens ever since.
At some point, he met Kevin and had several altercations with him. By 2011, Kevin reformed and joined Ben's side.
Ben, along with Gwen and Kevin, arrived at Incarcecon to stop a breakout, specifically Ra'ol Set. When Ra'ol Set was recaptured and Blitz escaped, Ben told the Magisters who had also arrived that he would be on Earth until the end of month ceremonies a few days later.