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.

Marvel unveiled 27 cast members to announce that Avengers: Doomsday was in production. The reveal came over a five-hour-long livestream where a new chair was revealed about every 15 minutes, before Doctor Doom star Robert Downey Jr. made a brief on-screen cameo.