Benjamin "Ben" Kirby Tennyson, nicknamed Ben 10,000, is the fully grown version of the main timeline Ben, who has become a full-time superhero. Ben 10,000's nickname comes from the fact that Ben now has access to at least 10,000 alien forms (though he says he stopped counting since then), he also has unlocked the Omnitrix's Master Control, allowing him to switch forms at will, without timing out.