Benjamin Kirby “Ben” Tennyson, commonly known as Ben 10, is a superhero and the titular protagonist of the Ben 10 franchise. Created by Man of Action and produced by Cartoon Network Studios, he first appeared in the animated series Ben 10 (2005-2008), following his journey through Ben 10: Alien Force (2008–2010), Ben 10: Ultimate Alien (2010–2012), Ben 10: Omniverse (2012–2014). The franchise has been rebooted twice, first in the animated series Ben 10 (2016–2021), and then in the Dynamite Comics series Ben 10 (2026), reimagining the character as a 10-year-old for a modern audience. Across these iterations, he matures from a reckless and adventurous child into a capable and responsible hero once he obtains the Omnitrix, a watch-like device which allows him to turn into various alien species. The version of Ben Tennyson presented in the first four series is identified as Ben Prime from the Prime Timeline, making him the progenitor of the entire multiverse.