Dr Xenon

Dr Xenon from TDX (Tower Defense X) She used to work for the same place as you, the GDA, Global Defense Alliance, then she betrayed them...She makes robots like the Eradicator, Eradicator Mk 2, Eradicator Mk 2+, Eradicator Mk 4, Golden Eradicator Mk 4, Eradicator Mk 1 Combat, Zues, Phobeus, Artemis, the VX Drone, the Emperor, Ginger D.R.E.A.D. Cyborgs, such as the Predator, the Apex Predator, the Alpha predator, and General Celgar, and many more...She sends armies upon armies of enemies towards earth's doorstep, with only the GDA to stop it, credit to John Roblox for creating such an amazing story and game.