Firstly, and most often forgotten by everyone is green_amaranth, Amaranth Rosier. Slytherin, class of 1972. Originally Amaranth Viridian, she is related to Vindictus Viridian, a former headmaster of Hogwarts. She was raised to be a good socialite and wife and was swept off her feet by Evan Rosier (like an idiot.) She does honestly love him, but there is a reason why her theme song is Falling in Love with Love. Her children don't really see how badass she could be, and its honestly because she smothers everything down to play her part. She loves her kids, but she doesn't know how to help them, and can be somewhat overbearing. She doesn't want Daisy to make her mistakes.
Secondly, this little ball of feelings alyona_dolohova is Alyona/Alonya/Aly/Lenochka Dolohova/Алёна Антоновна Долохова. (It's a complicated Russian novel, everyone's got nine different names! ) She's a pureblood Hufflepuff from '99, and apprenticed to Mary MacDonald, the Crown Potions Master. She is an affection-starved people pleaser, who just wants to matter to people. She also despises her little brother to the point of daydreaming his murder, though her bad thoughts and Dark Arts ability cause her extreme amounts of guilt. She ran a potions black market in school for people who didn't want to go the hospital wing. She's a hot bisexual mess, and could be twisted toward the crown or the rebellion, depending on who shows her affection.
Next alphabetically is intheircourses Aurora Crouch, nee Sinistra. She's a half-blood, who was the daughter of the Crouch family's cook and butler. Like something out of Upstairs, Downstairs she and Barty Junior became best friends. She was a Slytherin, class of 1980, and is a mimic, who managed to convince most people who didn't know better that she was a noble. She and Barty have been together forever, and are now married. She's usually viewed by the higher classes as a gold digging social climber, but she doesn't care. She's had some issues with fertility including miscarriages, but is still trying. She's a shark of a Crown Prosecutor for Scotland and needs friends.
Then we have Gem. gemofthepack Gemma Farley is a former Slytherin Prefect, class of '94. She's a cursbreaker for Gringotts, and became a werewolf while out playing Lara Croft. She was registered, and is the third in command of Micah's werewolf pack. She's noble and sociable, but has recently learned her lesson about relationships with non werewolves (thanks Marcus). She's usually spoiling for a fight under all the niceties, and can probably kick your ass.
Next is the foul-mouthed ball of sap that is quidditchbelle Katie Bell. Born and raised on the second worst council estate in London, Katie is a Peckham punk through and through. She is incapable of having a conversation without cursing. Gryffindor, class of 1990. She only recently discovered after years of wondering, that her father is Goyle Sr. She has taken to having a baby brother well, and after years of basically being the biggest lesbian douchebro out there, has a steady girlfriend in Flora Carrow. A professional quidditch player for the Holyhead Harpies, she is nice but crass and nicknames EVERYONE. (I have also decided that she half-moved into the cursed twin dorn on a dare after everyone thought the twins ate their roommate)
And one of the new kidlets, is Madeleine "Maddie" Runcorn Prewett. violent_ends Half-Veela, Ravenclaw class of 1990. Eldest of the Runcorn siblings, she never met a thing she didn't want to know how it worked. If you want her to find out something, tell her she can't do it, a true Ravenclaw Scorpio, forbidden knowledge is her jam. She is secretly an Unspeakable researching in the Death Chamber. Maddie has probably the strongest Veela thrall/pull of her siblings, and is more frightened of her Veela nature than she is willing to admit. Pansexual but happily married to Teddy Prewett (who she constantly refers to as Nounours) she needs all the friends.
Second to last, strangely, is actually my first character. Morag MacDougal missmoramac is a Ravenclaw from the class of 1998...who was pretty much adopted by the Hufflepuffs because she had really bad homesickness and trailed after her cousin Cedric. 5'0" Morag is small, but a vicious Chaser on the Montrose Magpies. Whip smart so she should probably be doing something else, but shut up, there is Quidditch. She does a lot of work with charities, and has recently strained her relationship with her parents over her recent arranged engagement to Trent Mulciber. Too bad she's caught feelings.
Last but not least is Nineveh Valont (formerly De la Roche) theheartmelteth Nin is a former Triwizard Champion for Beauxbatons, and recently moved to Britain after she summarily killed her husband and made it look like an accident. No one is overly bothered, or suspects her because he was A) an idiot and B) a well known playboy. She has two kids in France, and returned to her maiden name, which she always used professionally as an opera singer (because I enjoy torturing myself.) The Valonts and the Lestranges are actually really closely related, so there's that. She is also secretly totally gay and sort of in a relationship with Dorcas. not that either will admit it.