Phase Zero
Characters

Bruce Banner

Hulk

Bruce BannerEarth-616

A physicist whose own experiment left him sharing a body with something enormous and angry, and who spends fifteen years negotiating with it instead of curing it.

Bruce Banner is a renowned physicist with seven doctorates who spends most of his screen time trying not to be in the room. He agreed to a Culver University experiment that Thaddeus Ross described as work on gamma immunity, and which was in fact an attempt to rebuild the super soldier programme. It went wrong in the way that defines the rest of his life.

The interesting choice the films make is that nobody ever cures him. He tries, early and seriously, working with a stranger he only knows as Mr. Blue, and after that the story stops treating the Hulk as an illness and starts treating him as a roommate. Banner learns yoga to keep the Hulk down, then spends years failing to keep him down, and eventually sits in a lab in Mexico that Stark built for him and negotiates a merger instead.

That is why his arc reads differently from everyone else’s. Steve Rogers has to decide what to do. Tony Stark has to decide what to build. Banner has to decide how much of himself he is willing to give up in order to be useful, and the answer changes every film.

Show detailsTwo actors, one character

Edward Norton plays Banner in The Incredible Hulk. Mark Ruffalo has played him in everything since. Kevin Feige has said the studio chose not to bring Norton back; Norton has said the decision was his, because he did not want to be tied to a single character for years.

The recasting is also why The Incredible Hulk is the entry people most often forget belongs to this continuity at all. The other reason is contractual: Universal holds distribution rights to standalone Hulk films, which is a large part of why the Hulk keeps turning up in other people’s films and never again in one of his own.

Major spoiler

The gauntlet is his. He is the one who puts it on and reverses the Blip, and it costs him the use of his right arm. He also admits, afterwards, that he tried to use the Stones to bring Natasha Romanoff back and that it did not work.

Played by
Edward Norton, Mark Ruffalo
Role
Physicist, and the most reluctant Avenger
Affiliation
Avengers, formerly Culver University
What they can do
None as Banner, beyond seven doctorates. As the Hulk, strength that rises with his anger and a body that refuses to stay injured.

The journey

What happens to this person, title by title.

  1. The Incredible Hulk2008

    A gamma experiment sold to him as radiation immunity turns him into the Hulk for the first time, and he spends five years on the run from the general who ordered it.

  2. The Avengers2012

    Recruited out of hiding in Kolkata to track the Tesseract, he loses control on the helicarrier and very nearly kills Natasha Romanoff.

  3. Avengers: Age of Ultron2015

    He helps Stark finish Ultron, and is then made to level Johannesburg by Wanda Maximoff before Stark can put him down.

  4. Thor: Ragnarok2017

    Undefeated champion of the Grandmaster's arena on Sakaar, with Banner nowhere in the building.

  5. Avengers: Infinity War2018

    Thrown back to Earth to warn everyone, he finds that the Hulk will no longer come out for him.

  6. Avengers: Endgame2019

    Reconciled into one body with both minds, he is the one who puts on the gauntlet and brings everybody back.

  7. Shang-Chi and the Legend of the Ten Rings2021

    Called into a hologram with Wong and Carol Danvers to look at the ten rings, arm still in a sling.

Appears in

  1. The Incredible Hulk2008
  2. The Avengers2012
  3. Iron Man 32013
  4. Avengers: Age of Ultron2015
  5. Thor: Ragnarok2017
  6. Avengers: Infinity War2018
  7. Captain Marvel2019
  8. Avengers: Endgame2019
  9. Loki2021
  10. Shang-Chi and the Legend of the Ten Rings2021
  11. Deadpool & Wolverine2024

Sources

Facts last checked on Sep 7, 2026