Spider-Man 4 is already sparking excitement, but fans may be in for a surprise regarding Mark Ruffalo’s Bruce Banner/Hulk. While the film officially releases on July 31, 2026, new updates suggest that Hulk could undergo a major transformation that audiences haven’t seen before. This twist could reshape the MCU’s approach to the character and open doors for future stories.
Ruffalo Returns as Bruce Banner/Hulk
After initial reports suggested Hulk might transform into the Grey Hulk, insider Daniel Richtman revealed that marketing could avoid showing this version to prevent spoilers. Meanwhile, set photos have confirmed that Mark Ruffalo is indeed reprising his role, despite earlier denials.
Moreover, promotional materials will likely stick to Hulk’s familiar green design. This strategy ensures fans experience the transformation first-hand during the movie rather than through trailers or merchandise.
Could Hulk Become the Savage Hulk?
In addition to Grey Hulk rumors, another theory suggests Hulk may instead transform into the Savage Hulk. This version is more aggressive, deadly, and unpredictable, adding higher stakes for Spider-Man and the MCU overall.
If the Savage Hulk does appear, it could impact team dynamics in the movie, especially in confrontations with villains like Mac Gargan/Scorpion and Lonnie Lincoln/Tombstone. Moreover, such a transformation may tie into broader MCU storylines, hinting at future crossovers or character arcs in Phase 6.
Fans are eagerly speculating which Hulk variant will appear, especially after Hulk’s last appearance in She-Hulk: Attorney at Law, where he introduced his son Skaar in the finale. This new twist may also explore Banner’s struggle to control his alter egos, giving the film a psychological edge.
Spider-Man 4 Star-Studded Cast and Mysterious Roles
Directed by Destin Daniel Cretton and written by Chris McKenna and Erik Sommers, Spider-Man 4 stars:
- Tom Holland as Peter Parker
- Zendaya as MJ
- Jacob Batalon as Ned
Additional cast members include:
- Jon Bernthal as Frank Castle/Punisher
- Michael Mando as Mac Gargan/Scorpion
- Marvin Jones III as Lonnie Lincoln/Tombstone
- Sadie Sink in a mysterious role
Fans speculate that Sadie Sink could portray Jean Grey, especially since she is confirmed for Avengers: Secret Wars. If true, her involvement could hint at a multiversal or mutant-related subplot, raising questions about the larger MCU storyline.
With Hulk potentially showing a new form, Spider-Man 4 promises intense action and high stakes. Therefore, fans should prepare for surprising twists that go beyond traditional superhero storytelling. Moreover, the film’s approach to marketing suggests that viewers will experience the transformation organically, heightening the impact of any reveal.
Additionally, the film could explore Spider-Man’s adaptability when facing unpredictable allies and enemies. With villains like Scorpion and Tombstone, plus possible crossovers, Peter Parker may face one of his most challenging adventures yet. This combination of personal stakes and large-scale action makes Spider-Man 4 a must-watch for MCU fans.
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