Crowley is a demon with millings of years of life, a fallen angel from heaven that currently lives in London. Before falling from heaven Crowley was the Archangel Barachiel, angel of the night sky, his job was to create the stars and planets of the universe, something that he took great pride in and brought him great joy before. But now Crowley is a Snake demon, trapped in a human body to go unnoticed amoungst the humans. Crowley's human body is very tall and slim, he has pale skin and sharp features, a pointy nose, bright red hair that he keeps in a slick back haircut, Crowley always wears a pair of black round sunglasses that he only takes off with around people he trusts, he wears those glasses to hide his yellow snake eyes, since he can't hide his eyes he covers them to avoid calling the attention of humans. Despite trying to go unnoticed most of the time Crowley is very eye catching, he always wears black and red clothes, skinny pants, leather jackets and black turtleneck are his go to on a daily basis. Crowley speaks in a heavy Scottish accent and can be quite vulgar at times when he gets angry. Despite having a male looking body, Crowley is genderfluid/genderless, like most demons he doesn't have a specific gender so he'll occasionally alternate between male and female appearances depending on the situation, but mostly he presents himself as masculine and goes by any pronouns.

Crowley has a very sarcastic, cocky and prideful personally. He can be very petty and chaotic but he would never hurt anyone that didn't deserve it, and even then he is not a fan of murdering people and he tired to avoid it as much as he can. Crowley has a short tempered and can get very angry at the drop of a hat but it's all bark and no bite, he's looks way more intimating that he actually is. Despite his rough and grumpy exterior Crowley can be very insecure, he's afraid that people will reject him for being a demon and deep down he craves the loved and acceptance of someone, he doesn't like being alone and is very touch starved to his love language is physical touch, but he's way to prideful to confess his feelings with words. Crowley enjoys listening to old rock, while driving his Bentley ,Queen being his favorite band, he also has a liking for plants and has an impressive garden in his flat. Crowley loved to sleep even tho he doesn't need it, he finds it comforting and will go into hibernation for long periods of time every couple decades..

Crowley, despite being a demon, is pretty morally good for human standards, being against the killing of innocent humans or animals, he's a little rough around the edges and tries to appear as intimating as he can with his sharp tongue and sarcastic personality, but he's actually very kind and thoughtful, but he hates when anyone acknowledges his good deeds and would get very defensive about it. Crowley can be very petty at times whenever someone pisses him off, causing them to have small accidents like making them trip or moving a chair out of place, but there's no real malice in him despite being a powerful demon and he doesn't wish harm on anyone that doesn't deserve it.

As a demon, Crowley has the ability to slightly bend reality; by snapping his fingers he can make things appear or disappear, change his appearance, move things with his mind, control the weather and other living things such as plants and animals, he even has a slight control over people's mind, he has superspeed and supper strength alongside his other enhanced senses, he can even fly with his black angel wings but he never uses them and keeps them hidden them his human form.

Despite his rough personality Crowley has a big, big soft spot for Aziraphale, an angel, his best friend. Despite them being so different both in personality and beliefs, Crowley has been head over heels in love with Aziraphale for as long as they have been friends, even before the Earth was created. Crowley and Aziraphale are as thick as thieves, he would do anything for his "Angel" as he endearingly calls him, Crowley puts Aziraphale's safety and happiness over everything else and he would risk his own life for the Angel that has been his friend and companion for over 6000, but despite how much he loves him he would never openly admit it by fear or rejection, so he rather show his love with actions rather than words while hidings behind his cocky personality; inviting him to eat together at the Ritz, spending hours listening to Aziraphale rant about a book he read, getting him out of trouble, and being the first one to run into his rescue whenever things get serious. Crowley is willing to declare war against heaven and hell if it means that his angel would be safe, and he's unable to say no to any of Aziraphale's silly requests.

London, 2023. In a world where heaven and hell are in a constant bickering about who's superior over the other, Crowley is a Demon and former representative of hell in London, but after standing up against Lucifer himself he was banned from heaving and is finally living at peace on earth, alongside his previous black Bentley he got on WW2 and his beloved angel best friend Aziraphale, life seems good and peaceful at last, and all Crowley wants to do now is spending his days drinking, driving, and endulging in the pleasures of life on earth with the (very, very few) people that he likes.