The cast for X-Men: Days of Future Past is big as it is, because we will see a lot of actors from the original trilogy in this one, as well as some of the cast from First Class. But, since there are other roles to be filled, you can add one more name to the list -- Peter Dinklage, from the great HBO series Game of Thrones. Director Bryan Singer posted this on his official Twitter account:
X-Men: Days of Future Past is based on a classic comic book storyline, which deals "with a dystopian alternative future in which mutants are incarcerated in internment camps." The arc also features the Sentinels, who rule the United States. Bryan Singer is directing the film, with Michael Fassbender, James McAvoy, Hugh Jackman, Ian McKellen, Patrick Stewart, Jennifer Lawrence, Nicholas Hoult, Anna Paquin, Shawn Ashmore, Ellen Page and Peter Dinklage starring in the upcoming sequel.