Gwen Tennyson (Gwen 10)

This is a non-canon version of Gwen Tennyson that found the Omnitrix instead of Ben.

Gwen 10
In this episode, Gwen found the Omnitrix and turned into Heatblast. Ben later turned her into Grey Matter and messed with her. She fought one of Vilgax's Drones as Diamondhead. She brought Ben to a bowling alley and played as Four Arms.

She was captured by Vilgax and the Omnitrix was removed from her and attached itself to Grandpa Max.

Ben 10,000 Returns
In this episode, Paradox referenced this version of Gwen as one of the alternate realities that exist while explaining how cross-time works to Ben, Gwen, and Kevin.

Original Series

 * Gwen 10 (first appearance)

Onscreen

 * Heatblast
 * Grey Matter
 * Four Arms
 * Diamondhead

Offscreen

 * Upgrade
 * Ripjaws
 * XLR8