Darcy Lewis: As Dr. Jane Foster's assistant, Darcy is heavily involved in astrophysics research, but she has never seen anything like the phenomenon that has manifested in East London.

Dark Elf: The homeworld of the Dark Elves, Svartalfheim was the source of Dark Energy, a precious commodity in Asgard. Only a handful of Dark Elves are left, but their gravity weapons still make them a deadly threat.