De Schotse acteur James McAvoy vertolkt in X-Men: Days of Future Past voor de tweede keer de rol van Professor Charles Xavier, het personage die in de eerste X-Men trilogie nog gespeeld werd door Patrick Stewart. Ook hij zal een rol hebben in de zevende X-Men film. In de laatste editie van Total Film besprak McAvoy de eerstvolgende X-Men film na The Wolverine, die volgend jaar zomer verschijnt.
I thought the biggest thing that X-Men: First Class (2011) gave the franchise was a real palpable sense of humor that wasnt just for a couple of moments. It was running through the thing. And I hope that continues. I dont know how easy it will be for me to be a part of that as my characters going to be in a pretty [frick]ed up place. Its a shame because I like the fact that Charles Xavier was witty and funny and a bit of a lecherous old guy trapped in a 30-year-olds body.
Hij kan echter niet bevestigen of we Sentinels gaan zien in Days of Future Past: As a fan of the X-Men world and lexicon, I share lots of other fans hopes and dreams and Id like to see Sentinels...