Kevin Ethan Levin is a villain/anti-hero in Ben 10 (2016) reboot series. He is an 11-year-old boy and one of Ben's former bullies from school who managed to create his own Omnitrix with the help of Vilgax prior to the events of Season 3. Kevin is a bully who seems to enjoy causing other people misery, taking sadistic joy in inflicting pain and suffering. He is also incredibly arrogant, believing himself to be better with the Antitrix than Ben is with the Omnitrix despite having had it for a far lesser period of time, and is determined to prove this by destroying Ben. Kevin is loathed to believe that he could need help with anything, which caused him to initially reject Forever Knight's offer of recruitment. Despite his ruthlessness in regards to Ben, Kevin doesn't want to hurt others who aren't involved with their feud. He especially doesn't want to see Gwen getting hurt, as he has a crush on her. He has also shown a willingness to swallow his pride and work together with Ben if need be. Kevin is equipped with a powerful device called the "Antitrix" a makeshift version of the Omnitrix, which can transform him into mutated fusions of Ben's aliens. It also contains alien DNA that Ben has not unlocked yet. Kevin seems to be remarkably smart since he was able to build the Antitrix with home materials.[10] He also added minor modifications, mutating and cross-contaminating the alien DNA contained within it, thereby making his alien forms stronger and nastier than Ben's.

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