THE FINAL PRODUCT AHHHH. This took a lot out of me but I am so proud of how it came together in the end, ahhhh.
Here are the original sketches if youâre curious as to how everyone looked originally.
Obligatory ask for you to click through
And finally, finally, my headcanons below the cut, so yaâll donât have to be bogged down with them. Warning, itâs kinda long
Hi, I put off making pancakes to write this
Lucifer
Lucifer owns a private detective agency (Edit: Itâs got a name now! Morningstar Detective Agency, courtesy of the lovely @impastaz309), and all the brothers are in one way or another involved in it
The agency works with the police in the more secretive cases, usually âimportantâ people going missing under mysterious circumstances, drug trafficking etc.
Though heâs the head, a lot of the time heâs handling paperwork which helps cover the brothers and his back, especially since some of the stuff they do, and links they have with other people and organisations, could be exploited at their expense.
Heâs looking at satan btw lmao
Running a detective agency and also keeping tabs on his brothers is very hard âĸ so Lucifer is just, tired, all the time. Please give him a shoulder rub and smooches
Mammon
Usually used as bait, believe it or not, therefore his existence is somewhat of a mystery. He has to keep a low profile.
If you asked someone in the street, unless they were really involved in the agency (which they wouldnât be), has a high ranking in the police (unlikely), or any of the other organisations the agency associates with (probably not) they wouldnât know he exists
Mammon is very good at his job, organising meetings with middlemen, smooth talking his way out of situations, getting even the criminals themselves to come and meet him without a mediator
He is only ever used when they agency or police know with absolute certainty that the person theyâll be catching will be arrested without fail - which is of course impossible to know, so itâs always a gamble when they pull Mammon out of the deck
Good luck dating him because this guy canât really go in public for too long at a time
LeviathanÂ
He works at a newspaper agency, or at least thatâs what they want you to think
In reality the whole reporter business is a front, and Leviathan is an information broker. Or rather, the head of a small group of information brokers.
The city is big, and one person alone isnât enough to cover everything, but man is his group efficient
Every address change, every telephone call made, every booking of hotel rooms, all of it, he keeps tabs on it all
The information heâs gathered has helped the private detective agency out in a pinch many times, and will continue to do so in the future
âIâm very very busy, so please donât call me during work, sweetheart. Especially not this particular number, thatâs only for emergencies, and even then, it better be life or death, okay? Okay.â
Satan
Works in a bar. Specifically, a bar in a kinda sorta illegal underground fight club. Itâs very illegal donât let anyone fool you
A lot of the more questionable people of the city frequent this bar, and let me tell you, some people cannot keep their mouth shut once theyâve had a few drinks.
Anything Leviathan or Asmodeus canât catch (donât worry Iâm getting there), is usually picked up by Satan via a blabbermouth who had too much to drink that night.
Satan is also pretty chummy with a lot of the fighters, and has a tendency to be the one patching up the milder injuries after fights
Therefore, he has a lot of favours he can collect, so if Lucifer ever needs some muscle that goes beyond what Beel can provide, Satan in there recommending a few of the more... smarter(?) fighters at the club.
Please donât scratch his bar, he is a very forgiving bartender, but ruining the mahogany imported from England will have him beating the shit out of youÂ
Asmodeus
A bit of a celebrity, his rise to fame being both accidental and very useful
Think barbershop quartet, but he does a lot of solo work as well. The other three guys in the barbershop quartet are an absolute blast, and Asmodeus loves them to bits.
Originally, Lucifer was furious. How does he expect to work in the agency if heâs off singing at clubs and attending fancy parties? Then he realised something: Asmodeus can keep tabs on any of the more sketchy celebrities who slip through the net
So off into stardom Asmodeus went, attending lavish parties and singing at packed theatres, collecting dirt, formulating blackmail, getting only the best gossip and pulling favours along the way.
âJen, hon, did you hear about Carter? Apparently, heâs sleeping with the daughter of the Chief of Police.âÂ
âWait a minute... Asmo, isnât she married?â
âShe is most definitely married.âÂ
âOh my.â
Beelzebub
Usually seen working with Belphegor, partially because, well, thatâs his twin brother and he likes his brother, so why not?
And also because Belphegor always needs backup
Though he isnât always with Belphegor, really, heâs just sent whenever Lucifer is wary of sending anyone in the agency somewhere on their own.
Think of Beel as a bodyguard of sorts. He is always there to stop things form getting physical if needs be, but he isnât always enough on his own despite being an absolute powerhouse. So sometimes heâll go around with someone Satan recommended too
Theyâre really nice actually, Beel was super surprised, youâd think theyâd have no manners? (Thatâs because Satan gives you the nice ones Beel, thank him once in a while)Â
They also all think heâs a marvel of muscle send from the gods so ya know. And they all get him cakes from that bakery he loves, so theyâre all good in Beelâs book
Belphegor
You know the whole good cop bad cop routine? Yeah, Belphie is both depending on who you need for that current situation.Â
Masterful in the art of manipulation, Lucifer uses him on the more tough to crack people who sit in the interrogation room
He is actually pretty good at shoving the fragmented pieces of a case together, weaving a story that gets the person being interrogated sweating bullets
Even when he is way off, he still manages to worm information out of the subject a lot faster than anyone at the police station. Point, private detective agency.
Like I said, he can be the good cop or the bad cop, though because he isnât all that intimidating, heâs usually asked to be good cop
But dear lord he is a scary bad cop, and everyone in the police force and their mother knows it
If you got this far wow, hi, thanks! And you may or may not be happy to know Iâm planning on another noir piece, this time featuring the undatables and maybe my mcs too idk yet

















