*Gwen has red hair and wears a blue hairclip, just like in the original series. She also wears a pink watch and white shoes. She wears 4 different outfits in the movie.

In the beginning, Gwen wore a blue T-shirt with a white long-sleeved undershirt, and her white capris.

In her second appearance, Gwen was seen wearing a light blue T-shirt with a white and gray striped tank-top over it with black pants.

When she visited the Plumbers with Ben and Max, she wore a light blue T-shirt with a picture of a cat on it, and black capris with cuffs.

Her final outfit consisted of a brownish-red tank-top with a butterfly on it, a white short-sleeved undershirt, and dark blue jeans. At the talent show, Gwen wore a gold jacket with this outfit.

In Ultimate Alien, she wears the same outfit she wore in the original series, but without the cat logo on her shirt, and her hair is shorter, and strangely enough, she has lips.

At the age of 10, during his summer holidays, Gwen went on a trip around the country with her grandfather Max and his cousin Ben.

When the holidays are over, Gwen's family moves to a different part of Bellwood which made Gwen start attending the same school as Ben.

Gwen first appearance in Race Against Time, where she stopped Ben from using the Omnitrix by saying it was a prop for the talent show in the school. During the quest to find and destroy Eon, she showed deep concerns for Ben when he was not taking anything seriously. Once Ben did become overwhelmed by Eon's DNA, her bond with Ben was what brought him back to his senses and got him to return to his human form. Eventually, the two got back to school and ended up second place in the talent show.*