Watch: Casey Affleck turns up in Boston for a hilarious SNL sketch about Dunkin' Donuts

You'd almost forget that Casey Affleck's early roles were comedies, such as Chasing Amy and American Pie 2, or even Ocean's Eleven.

In any case, Affleck got to stretch some of his comedy muscles last night hosting and appearing in a few sketches in SNL, one of which was a piss-take of the commercials for Dunkin' Donuts in the US. This particular commercial, however, featured a real Dunkin' Donuts customer in Boston.

Real as in really real Boston.  Take a look.