Re: Days of Future Past News and Discussion - Part 6
It would be his twin brother.
I prefer to think of twin brother thing as like the comics did In early 1980's and they had to clone Xavier and put his mind In cloned body.
Best comic book films-Superman X2 The Dark Knight X-Men Days of Future Past The Amazing Spider-man
X-Men:Apocalypse Batman Returns Captain America:The Winter Soldier X-Men X-Men First Class