UPDATED: The Mysterious British Chess Champion

There I was flipping through the channels to see what the mainstream press might have been saying about the recent World Chess Championships when I suddenly saw something from the BBC featuring someone who looks like Harry Potter, and who is apparently a "British Chess Champion", passing on his observations about the result. Joseff Thomas is the name.

Now I realise that I've been outside of chess for a couple of years, but the big news I still follow. I have never heard of Joseff Thomas. So who the fuck is this guy?

UPDATED (Nov 25, 2013): It turns out that Joseff Thomas is, indeed, a "British Champion". He was =1st in the U16 section in 2006 and =1st in the U15 the year prior.  Here is the full list of British chess champs since 1904. Hat tip to Kerry Stead.