Serving girl

A serving girl is an unnamed character in the seventh season. She is played by guest star Kate Dempsey and debuts in "Dragonstone".

Season 7
She is present at a feast hosted by Lord Walder Frey at The Twins, and along with several other women she is tasked with serving Arbor gold to the men of House Frey. However, upon drinking the wine the men all begin choking and dying. Once all of the men are dead, Lord Walder is revealed to be a disguised Arya Stark, who tells them to inform anyone who asks what happened there that the North remembers and that winter came for House Frey.