I can't find the post where we had the discussion (can we hate on Kinja's search system again) regarding a character that may or may not have appeared in the wedding on the last episode of Game of Thrones (kinda spoilers).
Finally got through the episode (thanks crappy band width) and FOR SURE, Penny is not any of the play fighters. Robb Stark's player yells a few times and it's male. He may even have his head knocked off before the final bow but I wasn't paying attention right then. The yelling I definitely heard.
So, maybe they're going to make her some shitty thing like the costume person (costumes aren't shitty but I just mean taking some complexity and meat out of the character as well as giving her a more typical female role). Or they'll just random-it-up and just say she was a sister and be done with it.