–Trender/Alexander, the fashionable one, who talks so fancy you have to be a millionaire to understand them.
–Trender/Alexander is also twins with Markus, Alexander is older than him by a couple of seconds.
–Alexander gets mistaken for Slender's twin a lot, while Markus and Splendor get mistaken for twins as well.
–Trender is aceflux/gay/aromantic. Goes by they/them pronouns.
–Alexander also has a slight British accent? But not so much, it's light. Either or they use their French accent.
–Trender also runs a huge fashion company up on Earth and Hell, called Sinner's Delight. Alex is so competitive, even killing the opposing competition that dare try to out top their company, nothing is below them, even blackmailing and hiring spies and hitmen.
–Alexander is fine with murder, just as long as the blood doesn't get on their clothes, same as Slender, while Splendor and Markus hate killing people.
–Slender/Wilhelm the 3rd, the serious one, nothing gets past it. Very intelligent and resourceful.
–Slender hates their real name, has had it change, but his brother's use his real name to annoy them.
–Slender is twins with Splendor! Splendor is older by a couple of minutes, but Splendor likes to state that Slender is the oldest.
–Slenderman hates, no loathes humans, so the Slender Mansion does not exist in my AU. (It's also because I don't like the Slender Mansion AU, my Slender would fucking rip and tear Sally apart with no remorse, he just loathes humanity.)
–Slendy has an Italian accent he uses this one the most, rather than its German accent.
–Slender is pansexual/demisexual. Goes by they/them/he/him/it pronouns.
–Spends most of his time protecting forest all around the world, killing anyone who dares cuts down any tree, anyone who dares harm the land.
–Their family doesn't know about its relationship between him and Zalgo, honestly, it's mostly a stupid bet the two of them made, to see who could keep their relationship a secret from both of their families the longest. They're married.
–Splendor/Sonny, the sunshine brother, very optimistic about everything and everyone, likes to act innocent, but is just as knowledgeable as his younger brothers.
–Splendor is actually one without an accent, but whenever his twin, Slender is around, Sonny will try and mimic them.
–Sonny is a pansexual/demisexual. They're genderfluid.
–Sonny works with angels, despite he, himself being a demon, loves humans. Protects them, even if sometimes it almost kills him.
–Splendor travel more frequently than his other three siblings. Mostly because his job demands it.
–When Sonny has spare time, Splendor puts on shows of entainment, not like that, nerds. He's a ring leader, displays shows of great magic, tricks, trained animals, and things you've never seen before.
–Splendor is actually possessive of his brothers, often manipulating his siblings to spend more time with him rather than their friends and dates.
–Markus/Sonnet, the flirty and adventurous one, very respectful and funny, the best one out of all of them who is the best with speaking with humans and demons alike.
–Markus Sinclair is his full real name, while Trender's real name is Alexander DeWitt, then Sonny Summers, and last but not least, Wilhelm Dixon the 3rd. The reason they all have different last names is because Faceless Demons have house symbols and titles that tell other beings what family they belong to.
–Markus and Alexander are the only ones who have normal human jobs. Markus works as a detective/cop and in his "past lives" worked as a mobster, SWAT, and served in the first World War. Markus just likes helping people, don't ask him about his mob days.
–Markus loves writing poems, hence his nickname; Sonnet. A sonnet is a love poem. Oh right, Sonnet is very popular with the Succubus' and Siren's, while Slender is popular with Zalgo's family and other Faceless Demons, Splendor is popular with Angels, and Trender is popular with faeries and mermaids.
–Markus is bisexual/aceflux/polyamorous. Goes by he/him/daddy pronouns.
–Sonnet is a feminist, and believes in equal justice for everybody, he's kinda like Batman, but without the edginess.
–Markus and his siblings are Faceless Demons, and most of their kind don't really have a concept on gender, so most of their kind kinda wear whatever they want, it's mostly him and Sonny that wear "girly" clothing.
–Markus has either a Russian or Italian accent.
Faceless Demons don't have females or males per se, most of their kind only go by they/them/it pronouns, but most species have pronouns, so some of them have alternative pronouns to make it easier for the other species to understand.
Meaning that there's no Faceless Demon that has boobs or hair, only their species can actually tell themselves apart, but to other demons they might mistake their friend for another Faceless Demon.
I also want to add that Markus Sinclair is my own version of Offenderman, if that wasn't obvious already, he downs that respect everyone juice, big fan of consent. >:3c