Fenrir
A vampire, or maybe even a vampyre, in the following of the Count de Magpyr. Agnes Nitt was not sure of the name nor even the gender of this vampire, who she last glimpsed being dragged down by the revolting villagers of Escrow after Granny Weatherwax turned the tables on them and left them craving tea and not blood.
Agnes thought this gender-uncertain vampire might also have been called Maladicta. And a vampire who converts a craving for blood into a craving for caffeine-based beverages might prove to be a singular and unique vampire...