Aleksei Morozov
Here's the faceclaim for Aleksei - the newest Morozovs brothers (only Aleksei has hooked nose like the rest of the Morozovs)
( I was on the fence with that but watching tua s3 made me say fuck it we're doing it lol)
So the thing is Sasha' and the twins share father but had different mothers (never really mattered to them as they were raised together and would never see each other as anything other than brothers and sister)
But the twins' mother had another kid so, he is Cole and Viv full brother and Sasha's half brother.
Aleksei is Sasha's age so 27 (only a few months younger than him) , he was raised away from the palace and brought there after the Morozovs left but as you can't abdicate from the court its sort of an impasse with Sasha still being the heir.
I believe Aleksei left the court or was thrown out (the details are still in the works) and he met the original three. He was dumbfounded at the fact that he has siblings family, but he didn't have anything or anyone to turn to in the human world. So they let him stay with them and use their surname no matter how their relationship would turn out because they felt like he had right to it too. And Aleksei's current occupation is the couch in the Morozovs apartment as he gets used to human world (he isn't completely on the dark about it but definitely didn't visit often)
But there are still problems, Aleksei is basically what would happen if Cole didn't have Viv and Sasha to ground him and to be someone he cares about, so he's definitely very hot-headed and aggressive at times. Upon seeing the twins he's like "I'm your older brother, you're going to do as I say"
To which Sasha is immediately like "You'll order my kids around after my dead fucking body!" so Aleksei doesn't really get that the fact that he's their full brother isn't really superior over the fact that they were raised together with Sasha and has been living with him for years, and they've met Aleksei a few seconds ago (well exaggeration but yk) so it's a mix of possessiveness, jealousy and anger but he would get along with Cole fine though.
About Viv, yeah he wasn't raised at the plaace where it's definitely treating men and women the same way so he definitely sees Viv as "A girl! Fragile l! Protect!" especially since she's his younger sister, but yeah his protectivness is definitely much different than Sasha's and Cole's who might intertwine when things get bad or someone hurts her but usually would let her get into fights at Dennys parking lot at 3am knowing that when she's in a good shape it's the other person's problem.
Now Aleksei is definitely kinda "My little sister, my responsibility" and try to prevent her from going into any danger often in a bit, aggressive, possessive way, which would infuriate Viv.
Cole would be like "woah dude chill, she just met you" and Sasha would definitely be like 🗡️🗡️🗡️ at someone coming in and claiming she's now his sister and insisting he knows what best for her, which Aleksei quite arrogantly definitely does, so yeah definitely the two would get into fights over that.
But if this would be worked out Viv and Aleksei would get along really well, but she would definitely had to tell him to chill with being protective even more than to Cole and Sasha.
Aleksei struggles to process the fact that when staying at the Morozovs apartment /sleeping on their couch he expected to be treated like a stranger /non invited guest. And instead he's treated like family, when Viv brings him some warm/ fresh sheets out of the dryer and some of the guys' around the house clothes, and when in the morning Cole calls him for breakfast he's just like :??????????? (but please do it again)
One cute thing about him - that's the reason why Aleksei is calling Viv ptichka /malen'kaya ptichka aka birdie /little birdie (and because Sasha already calls her malyshka and he refuses to do something similarly to Sasha which unfortunately for both of them they are really similar in some ways)
He was watching her as she was just "jumping" around him casually doing nice things to him, like giving him a cup of tea or making the couch, so he would sleep more comfortably, taking him shopping for clothes/personal things etc he just couldn't help but see/compare her to a literal little bird hoping around.
Unfortunately Aleksei is a complete disaster of a caretaker, usually he's whumper but I'm really vibing with the idea of Aleksei staying with Viv when she doesn't feel well and being just horrible at it, never really having to take care of any living thing before and trying but failing miserably.
He would try to cook on his own instead of "going easy way and ordering takeout" so breakfast lunch and dinner is something resembling coal coated into something resembling lava (?) and generally having good intentions but probably hurting her more in the long run.
If this is second/third time Sasha is texting Viv almost constantly because he doesn't like the idea of leaving her with Aleksei at all but sometimes he doesn't have a choice.
"Fine. Aleksei is getting ummm well not good at this but... better ig... He made an instant ramen that was almost edible. I just wonder how can you make water taste slightly burnt??"
Viv has a problem of being too trusting in regards to her brothers believing that they would never hurt her, and standing up to him so Aleksei who's not used to it and being the way he is would definitely force his way on her often, insisting she listens to him, not quite knowing how not to accidentally make her do that yet.
It would end when Viv gets hurt because hw dragged her somewhere without thinking. After that Aleksei still would be quite a big of an asshole, maybe even still insisting that Sammy but he would definitely try to be more careful of not accidentally forcing Viv into things that would hurt her.
Alright here is Aleksei style inspiration is board. I think it's sort of mix of Cole's and Sasha's styles in a things that Sasha wears aka suits/shirts and suits pants and jeans and sweaters at home but he definitely gets those things in Cole's extra /edgy /funky /slutty style so it turns up like this
Also Aleksei has "hello", "goodbye" tattoos on his palms ala Klaus Hargreaves. But with eye as an o in hello and first o in goodbye lol sorry for random Aleksei facts I've been just developing him recently.