Marvel may have allowed Thor to become too comedic, losing his serious threat as a powerful character. Avengers: Doomsday can reset Thor by giving him a more serious role, allowing Chris Hemsworth to showcase deeper acting.

Robert Downey Jr. returns to the MCU with other confirmed actors including stars Chris Hemsworth and Tom Hiddleston, 'X-Men' stars like Patrick Stewart and Ian McKellen, and a good chunk from the studio's 'Thunderbolts.

Is that you, Bob? Lewis Pullman, who will appear in Thunderbolts as, well, Bob is the latest addition to the growing list. Which at this point is assumed to be the official Avengers: Doomsday cast list, but might also just be Kevin Feige's Christmas card list.