Madam Wynai Thyrstyn was a Charisian citizen and the sister of Trai Sahlavahn.

She worked as a secretary and stenographer in the Charisian embass in Siddar City. She was also a cousin to Urvyn Myllyr, and married to Symyn Thyrstyn. Prior to the Rising, she forwarded secret information gleaned by her brother, and sent them to her husband's aunt in the Temple Lands; however, these letters were actually sent to the Office of Inquisition. (HFAF)