Introduced as Thor's coworker a mortal nurse to his alter ego, Dr. Donald Blake Jane soon became his primary love interest, appearing in nearly every issue of his initial solo adventures. Though her appearances started growing fewer and farther between in later years, Jane eventually received more attention throughout the wider Marvel Universe separate from Thor, showing up in storylines like Civil War, now a doctor of oncology instead of the nurse she originally was.
After decades serving mostly as a supporting character in other characters' titles, Jane finally became a headliner in the 2014 relaunch of Thor, starring as the new Goddess of Thunder when Odinson was deemed Unworthy in Original Sin. Jane's turn as Thor was originally kept a mystery, with her then-recent cancer diagnosis serving as the cover for her new secret identity. During this time, she joined the Avengers and helped restore the universe back to the way it was in Secret Wars.
After "dying" as Thor, Jane relinquished the name back to Odinson, which also sent her cancer into remission as a result. But that wouldn't be the end of her time as a superhero, with developments in War of the Realms leading her to become a brand-new Valkyrie, headlining the first ever Valkyrie solo title.
Jane has appeared often in other media, either in her civilian form or as Thor. Most notably, she was portrayed by Natalie Portman in the Marvel Cinematic Universe, appearing in Thor and its 2013 sequel Thor: The Dark World. She hasn't appeared in the MCU since the latter film, save a scene in Avengers: Endgame revisiting events from 2013, with Thor himself explaining they'd broken up between The Dark World and Thor: Ragnarok. As Thor, she featured in Avengers: Secret Wars, voiced there by Kari Wahlgren. She's also a playable character (usually as Thor) in many Marvel-based video games.
- Journey into Mystery vol. 1 (1962 — 1966)
- Thor (various runs):
- Avengers (various runs):
- War of the Realms (2019)
- Valkyrie (2019)
- Marvel Puzzle Quest (added in 2014)
- Marvel: Contest of Champions (added in 2015)
- Marvel Future Fight (added in 2016)
- LEGO Marvel's Avengers (2016), voiced by Elizabeth Maxwell
- Avengers Academy (2016 — 2019), voiced by Marissa Lenti
- Marvel Heroes (2016 — 2018), voiced by Jennifer Hale
- Marvel: Avengers Alliance (2016 — 2017)
- LEGO Marvel Super Heroes 2 (2017)