First debuting in a Free Comic Book Day issue of The Amazing Spider-Man in 2007, Mister Negative (alias Martin Li) is often depicted as a ruthless gunrunner and crime lord who can utilize the power of the Darkforce to control minds, manipulate energy, and be imbued with superstrength.

Newcomers include Stranger Things actor Sadie Sink and Jon Bernthal, who will reprise his role as The Punisher. Marvel itself hasn't revealed plot details, but it seems likely Brand New Day will be set before Avengers: Doomsday, which comes out late 2026.