The name [du-] Dumbledore also begins with the letters "du", so we chose him to represent this initial. [du-] Dumbledore, full name Albus Dumbledore, is a fictional wizard from the Harry Potter series. He is the headmaster of the Hogwarts School of Witchcraft and Wizardry and, like Harry, trying to find and defeat Voldemort. Learn more about Dumbledore