Helix

Dr. Helix is a brilliant geneticist who is working with the Resistance. A one time associate of Dr. Hetzfeld's, she left the mad doctor's employ when he abandoned her in the tunnels during one of her observation forays. A chance meeting with Crow saved her from certain death at the hands of the Ghouls, and lead to her joining up with the Resistance. Her special environmental suit allows her to turn completely undetectable, making her a valuable asset for reconnaissance and covert operations.