Sorry, not sure if it's been mentioned before, but I happened to be watching the King's Landing riot in season 2 (after Myrcella gets shipped off), and I noticed a familiar face in the background...

Right around the 2:02 mark, there's a split-second shot of a character that is almost definitely Varys. Not sure if it's been confirmed anywhere, but I thought that was very very interesting. I Googled it, and, I haven't read the books, but people think that Varys might have set up the riot to abduct someone named Lord Tyrek? Here's a passage from the books:

It was Varys he thought of then, smiling and smelling of lavender. The eunuch had agents and informers all over the city. It would have been a simple matter for him to arrange to have Tyrek snatched during the confusion . . . provided he knew beforehand that the mob was like to riot. And Varys knew all, or so he would have us believe. Yet he gave Cersei no warning of that riot. Nor did he ride down to the ships to see Myrcella off.

-Jaime, chapter27, AFFC

I have no idea what it means, but wanted to get some takes on it.