The SAVAGE Hulk Returns in Spider-Man Brand New Day

Though casting news isn't usually a spoiler, this actor's unannounced involvement suggests a reason for it. Just in case, spoiler alert.

Nexus Point News reported yesterday that Mark Ruffalo will reprise Bruce Banner in Spider-Man: Brand New Day. "Banner’s appearance will be much larger than a cameo, and Ruffalo will have a substantial role in the film." The trades haven't confirmed this, but the source's track record suggests it's accurate.

Most theories assume Banner/Hulk will team up with Tom Holland's Peter Parker to fight the movie's villain.

What if Hulk is the bad guy? Josh from Den Of Nerds has heard that the Green Goliath will be the villain, so Smart Hulk, or Professor Hulk, will likely revert to his Savage form and go on a rampage. According to previous rumors, Marvel's plans for the character could lead to a World War Hulk-inspired event.