Doomsday. We know that because a bunch of them, including Patrick Stewart and Ian McKellen, are confirmed for the gigantic MCU crossover. Their presence is fueling a lot of theorizing, and some fans think they may have spotted the Avengers vs.

Chris Hemsworth, Vanessa Kirby, Anthony Mackie, Kelsey Grammer, Tenoch Huerta, and all the actors confirmed for 'Avengers: Doomsday.'

Earth's Mightiest Heroes are assembling again, as Avengers: Doomsday is finally in production and has unveiled its complete roster. After months of rampant speculation (though we’re still expecting surprises), Marvel Studios has finally unveiled what Avengers: Doomsday ’s main roster will look like.