Dumbledore is a powerful wizard and headmaster of Hogwarts School of Witchcraft and Wizardry in the Harry Potter series. He is a wise and benevolent leader, often using his magical powers to protect the students and staff of Hogwarts. He is also a powerful ally of Harry Potter, helping him
From Wikipedia
Albus Dumbledore is a fictional character in the Harry Potter series of novels by J. K. Rowling. For most of the series, he is the headmaster of the wizarding school Hogwarts. He is one of the most powerful and influential wizards of his time, and is the founder and leader of the Order of the Phoenix, an organisation dedicated to fighting the dark wizard Lord Voldemort.