Kevin Levin is a fictional character from the animated television series Ben 10. He is known for his ability to transform into various alien forms, thanks to the Omnitrix, a powerful device worn by the show's protagonist, Ben Tennyson. Kevin has a complex personality, often shifting between being an ally and an antagonist throughout the series. Initially introduced as a villain, Kevin's character evolves over time, showcasing themes of redemption and friendship. He possesses the unique ability to absorb the powers of other aliens, making him a formidable opponent. His journey reflects the challenges of identity and the struggle between good and evil in the Ben 10 universe.