Not content to let Michael Fassbender and Ian McKellen have all the fun, James McAvoy has also gotten in on the action -- 20th Century Fox has released an 'X-Men: Days of Future Past' promo photo for the one and only Charles Xavier, professor and all-around badass. Just check out this glorious mane of hair, ladies and gentlemen. 

Fox has been rolling out some enticing promo photos for the upcoming 'Days of Future Past,' and so far we've seen Michael Fassbender's young Magneto and Ian McKellen's older Magneto. Now James McAvoy's young Xavier has gotten his own promo photo, which means we're probably going to see Patrick Stewart next. Honestly, we're pumped to see Jennifer Lawrence and Evan Peters (as Quicksilver)'s promo photos in the coming week, as we're sure that's where this is headed.

You can check out the full, high-def version of the photo by clicking on the pic below. 'X-Men: Days of Future Past' brings together characters from the original franchise as well as the new franchise as past and present timelines collide and Wolverine must fight to save the world from certain doom.

20th Century Fox

The film also stars Hugh Jackman, Halle Berry, Nicholas Hoult, Ellen Page, Shawn Ashmore, Peter Dinklage, Omar Sy, and Lucas Till, and hits theaters on May 23, 2014.