A 60p stamp of Merlin, the first great wizard, who served at the court of King Arthur and helped him in his quests. Photograph: Royal Mail/PA Wire
A powerful sorceress in Arthurian legend, Morgan le Fay is King Arthur's half-sister. She studies under Merlin, but is plotting all the time to overthrow Arthur and his court at Camelot
Photograph: Royal Mail/PA Photograph: Action images
Aslan - which is the Turkish word for "lion" - is the Lion of The Lion, the Witch and the Wardrobe, and appears in all of CS Lewis's Narnia novels. Described in the books as "the King of Beasts" and "son of the Emperor-Over-the-Sea", according to CS Lewis, Aslan was meant to represent Jesus in his Narnian universe. Photograph: Royal Mail/PA
The White Witch - or Jadis, to give her her proper name - first appears in CS Lewis's The Magician's Nephew, and is the villain of The Lion, the Witch and the Wardrobe, in which she has stolen power in Narnia and locked the country in ice and snow for 100 years Photograph: Royal Mail/PA
Gytha Ogg - usually called Nanny - is a witch and member of the Lancre coven in Terry Pratchett's Discworld books. She has 15 children, and many grandchildren and great-grandchildren: a kindly, motherly woman, everyone goes to her for advice. Photograph: Royal Mail/PA
Rincewind, another of Terry Pratchett's Discworld wizards, is a failed student at the Unseen University in Ankh-Morpork, and spends most of his time running away from various people who want to kill him for various reasons. Famous for solving minor problems by turning them into major catastrophes, he is a terrible coward, but always mysteriously seems to come out more or less on top Photograph: Royal Mail/PA
Photograph: Royal Mail/PA Photograph: Action images
Albus Percival Wulfric Brian Dumbledore is one of the greatest living wizards, the headmaster of Hogwarts, and founder of the Order of the Phoenix. JK Rowling apparently chose the name Dumbledore, which is an old word for "bumblebee", because she "imagined him walking around humming to himself" Photograph: Roayl Mail/PA
