Professor Albus Percival Wulfric Brian Dumbledore, was a half-blood wizard. He was the Transfiguration Professor, and later Headmaster of Hogwarts School of Witchcraft and Wizardry. Professor Dumbledore also served as Supreme Mugwump of the International Confederation of Wizards and Chief Warlock of the Wizengamot
Richard Harris as Dumbledore. He only took the role because his granddaughter said she would never speak to him again if he didn't. Wish he could have been Dumbledore through the whole series. Oct. 1, 1930 - Oct. 25, 2002.