Hello MJ! :D Yays for hats, I hope it's shaped like an awesome sailor hat.
1. Tamas: Jonathan is similarly a first year and way to sweet for his own good. He's very easily manipulated so Tamas would have no problems getting Jonathan to do things for him. Charlie won't know him yet? And Finn is one of his TA's.
2. Alfie: Finn's speciality is Spirit and he is a TA for etiquette so their paths probably cross quite a bit. He probably appreciates his quite demeanor and would talk to him occasionally. Tentative friends, maybe? Jonathan is brand new so he doesn't know him, but Charlie probably thinks he's the cool kind of weird lol.
3. Felix: Charlie would probably like Felix because he's a good time and fun to be around. Jonathan is brand new but if their paths crossed he'd be unable to resist the magnetism because he's sort of weak willed as far as that goes. And I'm not sure if Finn would know him?