Gwen Tennyson is Ben Tennyson's cousin(The owner of the omnitrix.) and Max Tennyson's granddaughter. In the Original Series, Gwen had green eyes and short red hair held by a blue hair clip and wore sapphire earrings, an elbow-length blue raglan shirt with a cat logo, white capri pants, and white sneakers with dark blue stripes without socks. She's spent her summer vacation on a road trip with Ben and Max going on adventures and fighting bad guys, be they alien or human.