Mark Ruffalo is set to smash his way back into the Marvel Cinematic Universe, reprising his role as Bruce Banner/The Hulk in Spider-Man: Brand New Day after his cameo in She Hulk: Attorney at Law in 2022.
Ruffalo’s comeback had been previously rumored, but it was only confirmed after the script was finalized and production was scheduled to begin in England this month. It even comes after Marvel Studios revealed Tom Holland’s brand-new Spidey suit for the highly anticipated fourth installment.
With major MCU stars having appeared alongside Spider-Man in each film—Robert Downey Jr.’s Iron Man in Homecoming, Samuel L. Jackson’s Nick Fury in Far From Home, and Benedict Cumberbatch’s Doctor Strange in No Way Home—what role will The Hulk play in Spider-Man 4?
What Will be The Hulk’s Role in Spider-Man 4?

Ruffalo’s return in Brand New Day will not only reunite The Hulk with Peter Parker for the first time since Avengers: Endgame, but also mark the comeback of another major Avenger in the web-slinger’s story.
This could signal a return to the classic “Marvel Team-Up” storytelling format—much like the previous Spider-Man trilogy, where Peter joined forces with iconic heroes like Iron Man and Doctor Strange.
As Bruce Banner once again embraces both his scientist and monstrous personas, the fourth movie is expected to continue the Smart Hulk arc, where he merges his dual identities for the greater good.
Rumors suggest he may serve as a mentor or ally to Peter, offering a guiding presence similar to that of Tony Stark or Stephen Strange.
With mounting threats in a darker version of New York City, Hulk could play a crucial role in helping Spider-Man navigate the dangers ahead.
In addition, given their emotional parallels—both sacrificing their personal lives to save the world—viewers may be treated to more meaningful interactions between the two heroes.
However, fans should take these details with a grain of salt, as Marvel Studios continues to keep key plot points tightly under wraps.
What Is The Spider-Man 4 Cast?

In addition to Holland and Ruffalo, Zendaya will reprise her role as MJ in Spider-Man: Brand New Day, alongside Jacob Batalon returning as Ned Leeds.
Jon Bernthal is also set to make his much-anticipated MCU movie debut as The Punisher following his return in Daredevil: Born Again. As a street-level vigilante, his presence is expected to bring a darker, grittier edge to Spider-Man 4.
Michael Mando, known for his role in Better Call Saul, will return as Mac Gargan / Scorpion, possibly continuing the revenge arc teased in Homecoming.
Sadie Sink and Liza Colón-Zayas have also joined the cast in undisclosed roles, though rumors suggest that the Stranger Things breakout star may portray a major Marvel character.
Directed by Destin Daniel Cretton (Shang-Chi and the Legend of the Ten Rings) and written by Chris McKenna and Erik Sommers, Brand New Day is slated for release on July 31.
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