Phase Zero
Characters

Jane Foster

The Mighty Thor

Jane FosterThorEarth-616

An astrophysicist who found a man falling out of the sky, and who eleven years later picked up his hammer.

Jane Foster is an astrophysicist, played by Natalie Portman, and she appears in Thor, Thor: The Dark World and Thor: Love and Thunder, where she becomes the Mighty Thor.

The first two films use her as the reason Thor cares about Earth, which is a thin job for a good actor, and Wikipedia is blunt that the reception of those two was mixed. Love and Thunder gives her the story from the comics instead: Mjolnir reassembles itself for her while she is having chemotherapy, and every time she lifts it she undoes the treatment. That version was much better received, and is often named as the best thing in the film.

Show detailsThe versions that are not her

Alternate Janes appear in Avengers: Endgame, where the team travels back to 2013, and in the animated What If…?. Neither is this Jane living forward.

Played by
Natalie Portman
Role
Astrophysicist
Affiliation
None. She has a laboratory.
What they can do
None at first. Later, everything Mjolnir gives whoever is worthy.

The journey

What happens to this person, title by title.

  1. Thor2011

    Hits a man with a van in the New Mexico desert and spends the film trying to work out what he is.

  2. Thor: The Dark World2013

    Falls through a hole between worlds and comes back carrying the Aether.

  3. Thor: Love and Thunder2022

    Dying of cancer, she is called by a broken hammer and answers.

Appears in

  1. Thor2011
  2. Thor: The Dark World2013
  3. Thor: Love and Thunder2022

Sources

Facts last checked on Sep 10, 2026