The player that uses the bernard-bb account on PokerStars is playing from Finland.
His or hers true identity is yet to be confirmed, but rumor has it that the man behind the mask is Ilkka Koskinen, the artist formerly known as "LokoIsBack" on Full Tilt.
According to posters on 2+2 Theo "Theo J" Jorgensen said that Koskinen is bernard-bb on a EPT live stream. Unfortunately we haven't been able to take part of this stream our selves.
Anyways, Finland is a great poker nation, but unlike Canada were a lot of former American Full Tilt Professionals did migrate, it not just across the border from the USA.
The language the natives speak in Finland sounds nothing English. In fact, when I think of it, it sounds like nothing else. So this makes it a whole less likely for "bernard-bb" to be somebody that isn't from Finland.
It doesn't take a genius to figure out, that this player probably played pretty darn high stakes before. Somebody very rarely (if ever) shows up out of nowhere to play against the best in the world, and wins over an extended period of time.