I am linking to canon information so you can have a look at that if you're interested. This is probably the shortest OOC character information post ever, so feel free to ask questions.
If you really want to know about Emma in canon,
the wiki entry on her is a good source of information.
What you need to know about her is that she's a bitch and prides herself on it. She's always dressed in white, usually in a way that flatters her figure. She's telepathic and will casually read your mind if it's possible.
Her greatest telepathic skill is the ability to enter your mind and manipulate specific parts of it, which means that she can literally stop you from moving, give you an orgasm or blind you (etc). She will only do this if necessary - if students are fighting each other for instance.
She can also turn into diamond all the way through, and she does not feel anything in that shape. She's as strong as diamond. The only way to hurt her in that shape would be to shatter her with, say, a diamond bullet. I'd rather no one did that, since that would also kill her and there are no Beast and Phoenix to put her back together again. You can still kick her across the room or something though!
Jake has appeared in the Deadpool: Circle Chase mini-series and the first on-going Gambit comicbook.
Gambit summaries,
Jake's girl shape and
Jake's powers.
In Fandom, Jake loves coffee, draws, changes shape every once in a while (though he tends to keep the black hair and the blue eyes), avoids fighting as much as he can, whines and is generally lazy. He's been trying to convince his dad to let him join the family business Infonet International Inc as a courier, and seems to have finally managed it. His loyalty will always lie first and foremost with Infonet.
He's friendly and approachable (unless you're trying to steal his coffee or his Krycek).
Due to his power of complete control over his cells, he can heal from everything up to a gun shot though the head, and poisons and gases don't affect him at all.
Buffy's
Wiki entry.
Buffy is the head Cheerleader in Fandom and the driving force of getting a squad started in the first place. The fact that she's a Slayer is known since a lot of people have known a version of her, but since there is a lack of random vampires and evil things that need killing on a nightly basis, that part of her hasn't gotten much of a showing (yet). This Buffy has never been Sunnydale. She came to Fandom instead.
She's bouncy and outgoing. She loves shopping. She also loves the fact that here she is not the "only girl in all the world". She used to date Sam Winchester, and she's a proud member of the Meerkat cabin.
Buffy shares a room with River Tam, and she has a tentacled monster named Berthold living under her bed.
ETA: I am in Norway, and I try to be in bed at 17:00 PST at the latest. On the other hand, I'm usually online from 07:00 PST, so.