24 Dialects in 8 Minutes
Quite a good dialect mimic here. He slips up from time to time (like saying “take a piss” when doing the American accent), but he’s really quite good.
Warning: there’s a lot of four-letter words, so it may be NSFW (not safe for work). Also, you may want to skip the lengthy intro and just dive into the accents which start at about the one-minute mark.
(Hat Tip: Geoffrey K. Pullum at Language Log)
Copyright 1997-2013, by David Wilton