A Basic Breakdown Of My Vampire Egos from My Base Vampire AU
Dark: Was turned by Actor in the 1920's, a small sliver of The Manor Entity is stuck in his soul and has influence over him. He fought to maintain his sanity for 30 years, but Celine's death broke him and The Sliver gained a lot of power. He's now obsessed with building a "family". He picks a target, stalks them, lovebombs them, makes them dependent on him, and turns them. He always asks first, only two have said no. He turned them anyway. He gaslights the family a lot, and basically keeps the entire city they live by under his thumb to make hunting easier.
Doc: Didn't want to be turned, always trying to escape. Vampires need to feed once a day to be healthy, Doc will push himself to almost two weeks without feeding. He despises Dark. He's forced to be the family doctor. Whenever he tries to escape, Dark always manages to catch him again. But Doc is made of Spite and A Moral Compass, so he always tries again. Dark's favorite, because Dark sees a lot of Damien in Doc and wants Doc to become just like Dark.
Bim: A total asshole. Raised by neglectful and abusive rich parents, he became obsessed with Getting Attention and Taking His Rage Out On Others. Also has the world's biggest ego. He runs the city's most popular gameshow, and no-one realizes that the contestants actually die. Everyone thinks it's CGI and special effects, and Dark helps cover up that the murders are real. Bim wants to be Dark's favorite more than anything, and is violently jealous that Dark pays so much attention to Doc. If Dark wasn't there to stop him, Bim would kill Doc.
Bing: A cyborg-vampire. He woke up in a junkyard with no memories, only know that he was a cyborg and his assigned name was Bing. He made his way to the city and met Dark while working a shitty job, and Dark became Bing's only friend. Bing suffered a lot from overheating issues and such in the past, but becoming a vampire fixed all of that. Dark saved him, so hes blind to Dark's true nature. He just wants Doc to be happy, but in those efforts adds to the gaslighting and invalidation of Doc's feelings because he just can't believe that Dark has any plans or feelings for them other than Caring. Best friends with Yancy.
Yancy: First person fully turned by Dark in the 50's, very soon after Celine died. At first he was horrified and fled but after killing his parents in a fit of Feral Hunger he went back to Dark as a form of self-punishment. Now convinces himself that Dark's belief of "Everyone is in The Family because Fate Says They Should Be" is true, because otherwise it means his parents died for less than no reason. Former musical actor, now only hums tunes to himself when no-one else is around. Best friends with Bing.
Host: Same basic backstory as in the Cyndago videos, but when he got shot Dark (whom had been his friend for a while) smelled the blood while walking over and came in. Dark turned Host right before Host bled out. Host's powers mutated thanks to the Vampire DNA and he lost his eyes. Very antisocial, spends most of his time in his room narrating what's happening with The Family and The Hunters. Lies to Dark about how strong his powers are so the story can play out naturally with no-one at any extreme advantages.
Eric: Almost died in the bus crash that killed his brothers, but Dark was also on the bus with him and turned him to save him. Eric is forever grateful to Dark for taking him away from Derek and fully believes that Dark is a good person and keeps them all safe. Spends most of his time in The Manor because Dark takes advantage of his anxiety disorder to keep him close. Drinks mainly from Blood Bags gathered by The Googles rather than going out and hunting.
The Googles: Androids that Dark found and brought home for Bing to repair. They were altered to have fangs and bags in their stomachs so they can gather extra blood so The Family always has an emergency store at home. Also Dark's personal weapons/bounty hunters. When Dark can't do something in-person he'll send a Google.
Wilford: Turned by Actor, not Dark, unlike the rest of The Family. Lost his mind because he couldn't handle being a monster and needing to kill to live, so his mind stopped processing that Death is permanent to alleviate the guilt. Mysterious powers that even he doesn't really understand, but as long as he doesn't cause too much trouble he's pretty much allowed to do whatever he wants.
Mark: A Vampire Hunter, in the world-wide Hunter organization. Also a vampire turned by Dark. Dark intended to bring him into The Family, but Mark woke up halfway through turning into a vampire and managed to escape. He was rescued by The DA and they're now best friends, and the best Hunters in the entire organization.
The DA: Was the first person Damien bit the morning he woke up a vampire, but was only half-turned. They live forever, but their strength and speed are capped (other vampires just get stronger and faster forever with no limits). Was a nomad for many years before The Hunters picked them up with the promise of Curing them someday. Had many trust issues before Mark came along and showed them how to have friends again. Likes knitting. Despises Dark because he's "a monster parading around in their dead best friend's body."
Celine: Fled The Manor after a close call where Actor almost bit her, and dedicated her life to finding a Cure for vampirism. Later she learned William had been turned as well, and even later that Damien had been. She put Damien and William up in the family cabin and brought them weekly blood bags while she and a team of gifted scientists/alchemists/magic users/scholars all searched for a cure. Sadly the stress and strain cut her life short, and she passed away in the cabin holding Damien's hand hopeful for her brother's future.
(Sadly, her group was taken over by someone greedy and horrible after he murdered Celine's chosen successor, and this group became The Hunters.)
Actor: Was turned by The Manor. The more souls The Manor controls, the more powerful it is and the more it can expand the borders of it's power. Actor was intended to be the tool to gather souls, starting with his family, but it all went wrong. Actor now refuses to ever leave The Manor, and spends all his time waiting by the door for his family to return. He's certain that they will, eventually, and refuses to turn anyone until they come back. The Manor has tried to force him to turn stray hikers who wander onto The Grounds, but with only Actor under it's control it's too weak to fully break his resolve.
And that's the basic summary! Though there's many iterations of this AU. Like the Sia RP. That's a whole other ballgame (that you can read on @a-vamp-and-a-half) or the many Anon Jim RP threads (also on @a-vamp-and-a-half but I'm bad at organizing so I'm sorry it's so scattered)