Hmm. I don't know, Have you ever seen the south park movie?

They do a pretty good job of making fun of Canadian 'accents'. Canadians speak more or less just like Americans, but they exploit the differences to the max in this movie.

Ok for example. People from the Midwest have a very nasally tone of voice and are known for silly phrases "Don't ya know?" is one of them.

People from new york (certain parts) don't pronounce "O's". Like coffee is caaaffee. (I think this is true for some muscovites as well? right? They say their O's and A's weird?).