Lady Stork is a mummer in Braavos.  She is part of the mummer's troupe at the Gate. She likes to have a little nip of wine before each play.
Lady Stork performs in The Bloody Hand. Before the play began she stepped on the hem of her gown, Mercy and Daena sewed it up. Mercy poured Lady Stork a little nip of wine before the play began.