Ben Tennyson

Benjamin “Ben” Tennyson (voiced by Tara Strong in Ben 10, portrayed by Graham Phillips in the first live action film Ben 10: Race Against Time, voiced by Yuri Lowenthal in Ben 10: Alien Force, portrayed by Ryan Kelley in Ben 10: Alien Swarm) is the main protagonist of the series. He is a typical ten-year-old boy—he plays video games, rides his bike, and often gets into mischief. When Ben finds the Omnitrix, it latches onto his arm. Unable to remove it, he uses its powers to become a superhero. However, he finds the job trickier than he imagined, especially with the evil alien warlord Vilgax pursuing him relentlessly to retrieve the Omnitrix.