The last one is my favourite.
Sorry these aren't great quality, but it was the best I could do.
If you're in Britain (and therefore can access BBC iplayer, martin first appears at about 1:27, and then at 4:24, and Jools has a little interview with him at aboouuuut 11:10 onwards, its very sweet :)
people in the UK can watch it
HERE (for the rest of you, sorry! but I'm sure there will be a download link very soon!)
(Also, for Sherlock fans, I'm convinced that's one of Moriarty's henchmen, 5th cap down, dressed in white and holding a scythe. Either way, he looks a bit pissed.)