Aunt Fussy is a ghostly relative of Fenwick Quarrel, the deceased great uncle of the sorcerous couple Selwyn and Tallulah, and as a ghost amiably haunts their home Quarrel Castle. She is so named because is she is fussy about the state of one's home, especially if that person is dead and they are currently haunting a house. She appeared in the episode "Smurfing For Ghosts", when she along with Fenwick's other relatives are with Fenwick coming to visit him for his Ghost Day.