Dr. Xenon: shes a Evil Scientist that hates the GDA, but growing tired of it, she made all the Eradicators

MK1: He's the weakest and most annoying. Easily beaten but also a little neglected

MKII: she was the strongest until MKIV and MK1c came, pretty strong and is older than MK1, but still has her flaws

MKIV: He's the Heavy and Armored Guy from the bunch, he's slow but Powerful, but can detach the armor and be fast

MK1c: He's the Strongest, Oldest and most powerfull, very smart, loyal 