George R. R. Martin reveals that Cersei Lannister—arguably the last major adult role left to be cast for the HBO pilot of Game of Thrones (arguable, as some might note the importance of Khal Drogo in the grand scheme of things)—has been cast. As usual, he also provides some clues.

He writes about the actress:

“... but I can’t tell you who she is.

Only who she isn’t.

She has no lines in common with Mr. Miyagi, but maybe she should. If we were playing “Six Degrees,” there would only be one link between us. Her mother and Big Ben are strangers.”