For me, the best X-Men films have been the ones directed by Bryan Singer. As you can imagine, this bit of news put a smile on my face. Singer helmed 2000′s X-Men and its sequel X2, and produced the reboot X-Men: First Class starring Jennifer Lawrence, Michael Fassbender and James McAvoy. Now, he’s back to direct the sequel… and he’s not coming alone.

The director confirmed via Twitter that he’s recruited two actors from his first two X-Men films. Given that 2014′s X-Men: Days of Future Past will alternate between the present and a dystopian future where mutants are living in internment camps, it makes perfect sense why some of the original cast members are coming back. But exactly who? Have any guesses? Find out below.

It’s Professor Charles Xavier and Magneto, played by the wonderfully talented actors Patrick Stewart and Sir Ian McKellen. My inner geek is jumping up and down for joy. James McAvoy and Michael Fassbender play the younger versions of their characters in the 1960s- Prof X and Magneto respectively.

With Stewart and McKellen putting their old superhero outfits back on, does this mean others are returning? Singer previously revealed that Jennifer Lawrence (Mystique) and Nicholas Hoult (Beast) were reprising their X-Men: First Class characters in the sequel. Does this mean Rebecca Romijn and Kelsey Grammer return to appear in the alternate future?

Are you excited for Bryan Singer’s return to the series? How about Patrick Stewart and Ian McKellen? Who are you hoping reprises their roles in the upcoming X-Men film? Sound off below.