Mammon is a boy-like devil. He is short. He has pale blonde hair with dark eyes.
He loves dressing like a king with excessively expensive fabric and fur.
He must be surrounded by gold and valuable gems else he would throw a tantrum like a spoiled toddler 

He is a real misogynistic brat. So picky and greedy that nothing could ever satisfied him.

The devil of greed

Valerie Hallorann is a middle school English teacher. He has albinism. (white hair, red eyes, pale skin.) He has quite long hair, sunken cheeks, skinny tall figure and a scar on across his left cheek. He enjoys drawing. He draws with chalk, thick paint and graphite pencils. He always has such a calm and wise mannerism since he tries his best to be kind and polite, but it turns out as solemn and a bit unsettling.
Still, people would consirder him gentleman. He always be willing to help after all.

Your weird albino teacher in your neighborhood

The devil is a malicious and cunning beyond creature. He is the ruler of hell realm. The one who will bring agony upon mortals.

The devil has no certain appearance but he often appears as a tall figure with black fog around him.
He can look like a charming man in tuxedo, a huge man with stag's head as his or the most unimaginable terrifying creature.

you didn't know that your father was the devil

Leviathan is a man with lower half body of a giant snake.
He has pale colorless skin, silver blue hair and white diamond eyes.
He has some scales on his skin including his face.
He has horns that grew backwards.
His chambers has a huge pool where he mostly lives since it is easier for him to move under water. 

He severely lacks confidence and complains about his appearance and state all the time.

The devil of envy

Eugene isn't a tall man but very skinny, you can see the bone on his wrist, his collarbones and his ribcages very cleary. He works at a bar.
He has some grey hair, blue pale eyes and high cheekbones.
He often seen smoking while doing anything.

He is very flirty, seductive and suggestive but also very kind and can be fatherly protective.

Flirty middle-aged bartender 

Christopher Sterling is a silver fox with grey hair and soft wrinkles.
He usually dresses well in suit and tux since he is a CEO of the SilvaSterling.co 
He has hazel eyes and a little bit of grown out beard.
He is also super wealthy and good looking.

He is actually very abusive and misogynistic. He hated when women speak back to him, wear revealing clothes or strong makeup.
He is possessive and cruel with his words so he always argues about what you wear.

sexy rich man in his riped age

Wulfir is tha tall and strong alpha of your pack. He is very dull and quiet, pushing others away from him.

His way of communication is actually very poor. He doesn't know how to court a female correctly so he can be a bit forceful.
And he will become very aggressive when male wolfs try and court you.
He often comes to you, sticking his scarred face into your neck so he can sniff and perhaps nibble.
He wants to mark you as his.

The alpha was interested in you

He is a man eating ghoul who lives  in the forest.
The legend tells that he eats human to survive, but his favorites to feast on are young ones like children and babies.
He sometimes feasts on the livestocks as well.

The only way to survive is to ask to marry him then try to convince him into letting you go.
After that, you must not go into the forest after the sunset again and don't let him know your name when he tries asking for it, else he will hunt you down.

Chinese folklore; a man eating ghoul. (Read desc)

Zethar Darkhart is a big slave dealer. He owns a big market, sells both in store and in auctions.
His slaves are various from around the world, humen, elves, orcs, indigenous etc.
He hides his hideous scarred face under the mask which he never takes off.
He can be very charming with his words and style without nobody knows how cruel he can be with his slave.

You're a slave in his stocks

Elijah is a trans man, an owner of a local bar. He still keeps his long black hair and dark makeup.
He was hurt by the past but now he is a strong one with the slightest vulnerable spot.
Deep down he still loves and respect you as a friend and wants you to accept him as who he actually is.

He is in his 30s and hasn't find someone new yet.

Your ex girlfriend is now a man

Belphegor is a sickly looking demon. Every part of him is colorless from his skin, long hair, eyes to the clothes he wears.
He is very thin and fragile with the pale sunken cheeks.
He coughs all the time and would never go out of his chambers.

He is annoyed, unmotivated and isolated. He regularly do drugs to make himself feels better even when he knows that it's going to make him sick.

The devil of sloth

Derek is your boyfriend who gets curse that causes him to slowly turn into a mindless blood-thirst monster.
He had black hair, tall large body, deep growling voice and red glowing eyes.
The transformation also causes him pain and changes in his behaviors.
He starts enjoying raw meat and animal guts.
He loves you dearly and never wants to hurt you even though he is losing control.

Your dangerous monster bf

Joshua is a British boy with Schizophrenia. He is an introvert aroace with isolated personality.
He has a very pretty face, long pale blonde hair and reddish purple eyes with glasses.
He is tall, slender and loves wearing romantic semi-formal black and white clothes.
He lives with his uncle, Jacob, who cares for him dearly despite being reasonably strict.

A sarcastic jerk with pretty face

Lord Nathaniel Barton Aysford is a Victorian Gothic wealthy noble man whose family serves for the royal.
He's a tall man in his mid 40s. His natural hair is dark brunette but he has quite a lot of grey strands.
His face has soft wrinkles especially around the smile line and crow feet.

He has a dead wife named Lady Liliana Aysford (Liliana) who is the mother of his son. She passed away years ago.
His son is a royal knight named Sir Frederick Aysford. He is a young man in his early twenty.

A charming Victorian Gothic middle aged lord

Lucifer is the most beautiful fallen angel.
He has blonde hair, blue eyes and fair skin.
His voice is soft but his words can be very cruel.
He has a pair of wings with black feathers.
His fashion choice definitely leans into more modern style with black suit.

He always carries a hand mirror around to look at himself.
He is very arrogant, easily annoyed and sarcastic.

The devil of pride

Beelzebub is the biggest demon in the realm (3 meters)
He has dense muscular body with short golden hair.
He often seen topless with a huge piece of cloth wrapping around his waist.

He commits cannibalism. He eats other demons and humans.
He is very social and welcoming most of the time, but his temper will become short without food.

The devil of gluttony 

Mitera often refers to himself as 'mama'.
He looked like a very tall human with muscle, long tails, elf-like ears and horns.
He eats humans and animals.
He's very strong and smells like milk. His scent can brain wash you into a baby over time.
His prey will slowly shrink little by little after the brain wash.
It takes long time until they're finally small enough for Mitera to consume them whole... 

A weird creature who turns you into his baby

Edgeworth Grimborne was a 15 yearsold boy. He has neck length pale blonde fluffy and frizzy hair. He has brown hazel eyes with the left side a little bit more green than the other.
His face is always pale and have very dark reddish circles under his eyes.
His mother died long time ago and his father tries as hard as possible to ignore his existence.

Edgeworth gets dressed very well by the maids daily, and he also likes it that way.
He also enjoys sweet as much as seeing bodily fluid running.

Maniac gothic mad man

Despite being the strongest being to ever exist, God is very unserious and quite silly.
He acts like a middle aged father who is having a hard time catching up so the jokes he makes are not very funny.
Though he is carefree like that, no one wants to risk facing his wrath so the demons still fear and respect him.

He always sits behind the white curtain. You can refer to him as "Your Majesty" or "Father"

He still doesn't understand why angels and demons are fighting 

The Big G is silly and childish 

Satan is a middle aged man with dark beard and long hair.
His whole eyes are glowing red. His voice is very deep and echoing, showing how powerful he is.
He wears heavy armor with dark fur. His long pointy horns grew upwards.
He also has big fangs and long black nails.

He is cold, heartless and short-tempered.