For many years, Foster was a nurse, employed by Dr. Donald Blake, Thor's first mortal host, before becoming a doctor herself. Foster is later revealed to be deemed worthy to wield Thor's hammer Mjolnir when the former is no longer able. During this period, she adopts the mantle of Thor and joins the Avengers. Foster's stint as Thor ends with her sacrificing her life and the mantle reverting to the original Thor. After Brunnhilde and the rest of the Valkyrior are killed during Malekith's attack on Earth, Foster takes up the mantle of Valkyrie.
Current Version:
Valkyrie
Former Versions:
Jane Foster
Thor
