gwen tennyson (future)
Gwendolyn Tennyson is the future incarnation of Gwen Tennyson from the 2005 Cartoon Network animated series Ben 10.
Appearing in the third season episode "Ben 10,000", Gwendolyn is introduced as a hooded sorceress who appeared before 10-year-olds Ben and Gwen Tennyson and took them both to a far-flung future where aliens co-exists with mankind and Ben Tennyson became a celebrity hero with complete mastery over the Omnitrix and its (at the time) unlocked 10,000 alien forms.
In this future, Gwen have mastered the many mythical arts of Bezel and all of its secrets, now taking up her full name of "Gwendolyn Tennyson" as she protects the rest of the world in Ben's place whenever he's off-world doing his hero business.
In the episode "Ben 10,000" , Gwendolyn had short red hair styled into a pixie cut. She wore a blue and black spandex suit with black combat boots and the "Charms of Bezel" on her right arm. She had a hood and only sometimes wore it. She had a belt with a cat logo on it, the same cat logo Gwen wore on her shirt when she was 10-years-old.
In the fourth season episode "Ken 10" , Gwendolyn had much longer hair, tied back in a high ponytail and her black combat boots are now high heels.