An English magus of the first half of the 20th century. Claimed to usher in the Age of Horus in the channeling of Liber AL vel Legis. Founded the religion of Thelema. Reformed the Golden Dawn and Ordo Templi Orientis. Formulated the A∴A∴ Wrote many books of poetry, magickal ritual and instruction, and high weirdness. His rather remarkable autobiography is entitled The Confessions of Aleister Crowley.

Also known as: Frater Perdurabo, το Μεγα Θηριον (To Mega Therion), V.V.V.V.V., The Beast 666, etc. (He was born Edward Alexander Crowley.)

(Incidentally, the demon Crowley in Good Omens is not Aleister, but rather Anthony Crowley.)

b_o_leary: Crowley was not a friend of L. Ron Hubbard's. They never met, despite Hubbard's lies to the contrary. Crowley did, however, denounce Hubbard as a con man after hearing what he did to Jack Parsons.