X-Men: Days of Future Past director Bryan Singer is back on Twitter today, revealing a production office wall of actors' headshots. As you can see below, there's quite a few familiar faces, a few surprises and what appears to be six empty slots. Of those faces, the final three have not yet been announced and the first appears to be that of Daniel Cudmore, who played Colossus in X2 and X-Men: The Last Stand. We'll have updates on the other two faces as soon as they can be confirmed.
Scheduled for release on July 18, 2014, X-Men: Days of Future Past features a script by Simon Kinberg and is said to be inspired Chris Claremont and John Byrne's comic book storyline that ran in "Uncanny X-Men" #141 and 142 back in 1981. "Days of Future Past" introduced the idea of an alternate future for Marvel's mutants that grew out of the Brotherhood of Evil Mutants killing an important senator, leading to a future where all mutants are hunted by Sentinels.
Cast members confirmed for the film include Hugh Jackman, Ian McKellen, Patrick Stewart, James McAvoy, Jennifer Lawrence, Michael Fassbender, Nicholas Hoult, Anna Paquin, Ellen Page, Shawn Ashmore, Peter Dinklage, Omar Sy and Halle Berry.
UPDATE: We've now confirmed that the third new face belongs to Boo Boo Stewart, best known for his role in The Twilight Saga (alongside Cudmore).
UPDATE #2: We've now also confirmed that the other headshot belongs to Fan Bingbing, a Chinese actress best known for films like Battle of the Warriors and Double Xposure. She will be playing the teleporting mutant Blink.