With such a huge story to be told in ‘X-Men: Days of Future Past, it’s no surprise that the promotional campaign is anything but little. Fox and director Bryan Singer are certainly pushing this one hardcore, but it’s always good to know the players in the play, so to speak. That’s why it’s really handy that they’ve released some character bios for many of the characters that will be appearing in the upcoming film featuring the children of the atom.

Recently, fans got to meet a few of the main characters in Singer’s return to the franchise he created nearly fifteen years ago thanks to the latest character posters and the Empire Magazine covers, but now we have a number of biographies of nearly every new major player in the film like Bolivar Trask, Quicksilver, Sunspot, and more.

Also there is a bunch of new stills from the movie that were released that show us Magneto, Mystique, Beast, and Wolverine in action. There’s even a behind the scenes photo of the Sentinel Mark II. For all these pictures and bios, be sure to check out the gallery below:

For more information on the upcoming big screen mutant madness, here’s a brief synopsis:

The ultimate X-Men ensemble fights a war for the survival of the species across two time periods in ‘X-Men Days of Future Past’. The beloved characters from the original ‘X-Men’ film trilogy join forces with their younger selves from ‘X-Men: First Class’, in an epic battle that must change the past – to save our future.

What do you think of all these new pictures? Which new characters are you most looking forward to seeing onscreen? Or are you more excited about some old favorites making a comeback? Share your thoughts in the comments.

“X-Men: Days of Future Past” is set to hit theaters on May 23, 2014.

Sources: Collider/Film