In the novel Good Omens by Neil Gaiman and Terry Pratchett, Crowley’s real name is revealed to be ‘Aziraphale.’ However, it’s important to clarify that Crowley himself is a demon who was originally known as the angel ‘Aziraphale’ before his fall from grace.
This duality in identity plays an essential role in the narrative, as it underscores the blend of good and evil within the characters. Crowley’s transformation reflects his rebellious nature against traditional portrayals of angels and demons. The charming and somewhat mischievous personality of Crowley adds depth to his character, making him one of the most beloved figures in the story.