Mystique

When Irvin went to the 10pm release of X-Men Days of Future Past, it was as his favorite mutant - Mystique.  As the only costumed fan in the movie theater, he received a lot of requests for pictures; upon a request for a crazy picture, there was an action shot of Mystique choking a victim.  There was also some cartwheeling done.  Upon entering the concession area, Irvin received a standing ovation from all of the movie theater's employees.

Note: not to be confused with the Mystique from X-Men Evolution, who wears a lot more clothes!