Aberforth Dumbledore

The younger brother of Albus Dumbledore, Aberforth is a powerful wizard in his own right. However, after the death of his younger sister, Aberforth began to neglect his training and distanced himself from Albus. After the rise of Voldemort, however, Aberforth is slowly emerging from the shadows to help a new age of witches and wizards navigate the dangerous world they find themselves in.