Crowley (You've Been To Eden, I Perceive)

One universe's version of Crowley had the typical relationship with Aziraphale. As a demon, he was capable of shape-shifting, something he often used to play mild pranks, but he rarely engaged in anything truly evil. Aziraphale briefly considered whether the living, breathing Sherlock Holmes who once appeared in his bookshop was Crowley playing a prank, but soon realised otherwise (PROSE: You've Been To Eden, I Perceive)

Incarnations of Crowley
You've Been To Eden, I Perceive • Birds and Snakes