Tatháta the Beast, a member of the Kindred of the Coins and representative of the Lower Ward, can be found in The Hidden Harbour. A powerful warrior and trainer of animals, Tatháta rose to her position in the Kindred when her predecessor (Guild-master Imilka) was revealed to be a traitor.
Spoiler Alert: The Song of Waves and Wind: Chapter 9
Secretly, Tatháta is a skin-changer, and is able to take on the form of a bear; a secret known only to very few. By her own account, she was driven out from her original family and home, and soon became a Mariner, having travelled the Long Lake, Sea of Rhûn, and the Anduin. When corsairs attempted to capture her on the Ethir Anduin, events unfolded and instead she was made their captain.
Tatháta remains at large within the Valley of Ikorbân, and her true allegiances are not known at this time.