Gwen Tennyson is a main character hailing from the Ben 10 Universe. She is Ben's cousin.
Ultimate Story[]
Gwen made her first appearance in Ultimate Story 3. Fox and his friends arrived in her world when she and her cousin, Ben, were still 10 years old. They soon found out that they arrived within their world 5 years before the Rifter and returned within that timeframe.
Gwen and her friends and family waited those 5 years for them to return while they returned within a few moments after leaving their realm.
Gallery[]
Anodyte form