Ben 10,000

Ben Tennyson, nicknamed "Ben 10,000" is the fully grown version of Ben, from an alternate timeline.

Ben 10,000 has become a full-time hero. He is tall, more muscular, and sports a full-beard. The Omnitrix has also changed in appearance, becoming bulkier and more gauntlet-like in shape. He is recognized everywhere as Ben 10,000, no matter what alien form he is using (because his aliens have an Omnitrix symbol).

Ben 10,000's nickname comes from the fact that Ben now has access to at least 10,000 alien forms (he says he stopped counting), he also has unlocked the Omnitrix's Master Control, allowing him to switch forms at will, without timing out.