I’ve camped around sera’s tumblr for days, like, almost each day i read new asks in hopes to keep me sane from the thirst these four vampires have given me. From all those reading, I have a theory that N could have the background of a high class aristrocrat in the medieval or regency times hence the reasons his not so keen on learning technology or find it a struggle to understand them. Plus, there’s an ask and Though, Sera had said he can speak a lot of languages even ancient ones.
The idea that A is a british soldier is plausible. He has this solid sense of order and responsibility that soliders usually possess because of their training and helped them survive the war. Yes, I specifically imagine him as World War veteran But it could really just be from all the training from the Agency. It’s not far off that all members (especially Mason) of Team Bravo have that some sort of thinking too as they come from The Agency! But Sera said in an ask that A knows french and Latin and we all know latin hasn’t been spoken for a long, long time. Given that A has British accent, I tried to do some research on Latin being spoken in England and it turns it was when the conquerors from Roman invaded the country did crept into the Celtic Language! (Though, I’m not so sure so if anyone knows about this you can correct me.)
As for M, there’s not much info to munch over when it comes to him. But it could be he almost have a semblance with A’s background in a sense that he worked into that kind of field like maybe in the Navy or Air Force. Or that _A_and him were comrades. But for sure, he’s the one with the most emotional baggage which means he could’ve experience a toxic or harsh environment where his trust and feelings got tested to their limits.
Lastly, F gives me the impression that he is more of human-turned into a vampire. I don’t why exactly but probably he is one of the guys that is much more welcome to the idea of joining the detective into their team who is a human…for now. He might got turned in his teens and somewhere in the 90s era with being the one whose definitely the guy you can throw any tv show preference and would get it most of the time since he adapted into the technology age quite well.
these are just my two cents 