Aleister Crowley was a British occultist and mystic.
Prior to 1915, Crowley gave his copy of the grimoire known as the Necronomicon to Dr. Howard Phillips in lieu of payment for an ulcer operation. (PROSE: White Darkness)
In 1947, a Jarakabeth that Crowley had summoned began to impersonate him. (PROSE: Heart of TARDIS)
A Reprise of Crowley lived in Europa and was a rival of Johann Faust. (PROSE: Managra)
Sir Archibald Flint believed that Aleister Crowley was a prophet. (AUDIO: The Spectre of Lanyon Moor)
Circa 2007, Ace met a woman who wore a tee-shirt that had a hologram decal of Crowley on the front of it. (PROSE: Cat's Cradle: Warhead)