Albus Dumbledore. Headmaster of Hogwarts, the only man feared by Voldemort

Albus Dumbledore

Dumbledore is possibly the greatest wizard alive, even though by his own admission Voldemort posesses powers Dumbledore will never have, if only because he refrains from using the Dark Arts. He is extremely wise and full of knowledge concerning all manner of magics. Dumbledore is the head of the Order of the Phoenix and its secret keeper, meaning nobody can learn the location of the Order's headquarters without getting it straight from Dumbledore. When Harry's mother saved his life by sacrificing her own, Dumbledore fixed the magic so it would protect him indefinitely, so long as he was under the protection of a blood relative of his mother, such as his aunt Petunia. All the years growing up at number 4 Privet Drive, Harry was magically shielded from the hostilities of Voldemort's supporters, and the Dark Lord himself. So long as he returns there at least once a year, the magic will hold.

Dumbledore seems quite fond of sweets, as the password to his office is generally some kind of sweet like fizzing whizzbee or sherbert lemon. He tends not to eat Bertie Botts' every flavour beans though, since he ate a vomit flavoured one he's been rather wary of them, a view reinforced by the one bean he ventured to eat in the mistaken belief it was toffee, when in fact it was earwax.