Gwen Tennyson (Alien Fusion)

'Gwendolyn "Gwen" Tennyson' is a Human/Anodite hybrid Plumber, the paternal cousin of Ben Tennyson and along Kevin Levin and Rook Blonko a front line member of his team. Gwen is a recurrent character in Ben 10: Alien Fusion. She first appeared in the Happy Birthday Ben 10: Part 1. She exists in Dimension 10 of Earth-10,000

Appearance
After 1 year passed from Omniverse, Gwen has change his clothes again.

Biography
All events of the original series of Ben 10, Alien Force, Ultimate Alien, and Omniverse occurred in this timeline and therefore to this Gwen.

Ben 10: Alien Fusion

 * Happy Birthday Ben 10: Part 1