Fiercely power-hungry, Lady Kale is a banished member of the royal family of Avalon who now dwells in her dark Castle Thornwoods. She is a selfish, spiteful and cruel twin sister of Queen Anya—making her an aunt of the series' protagonist Princess Gwenevere. Serving her are three ill-natured animal stooges, consisting of her beloved dragon Grimm and a duo of pet dino-weasels named Rufus and Twig who are magically bonded with her.