@Jackles - Yes! Together they shall be unstoppable! ;D
@Sage - Athena won't have any sympathy for Cecilia. In fact she'll probably see the addiction as another excuse to be cruel. No doubt she'll see Cecilia is some sort of Blood-Traitor (I assume she associates w/ Muggleborns) and will therefore treat her like dirt on her shoe. Athena is nigh on allergic to Muggles. It won't matter whether the stuff is made by a wizard or not -- to be addicted is to be like a Muggle. There will probably be a few hexes thrown Cecilia's way also.
Hufflepuffs are fun....to torment. I don't think Athena will care about Victorie unless she crosses Athena in which case she will ruin her life, make her want to end her, quote, "pathetic existence" and she'll steal her boyfriend just for another kick in the teeth. She's a nice girl isn't she? xD
River is going to be sent back to the doghouse with his tail between his legs. Athena hates Half-Breeds just as much as she does the Mudbloods so if she finds out that he's a Werewolf then he'll be hexed into next week. After that she'll probably harass him if he ever goes near her again and maybe she'll even steal his Wolfsbane (or have someone else do it) so he ends up hurting someone. He's a Puffer so he'll be pretty upset about that I'm guessing.
Malfoys. Bleh. Athena has no time for them but I'm sure she'd 'befriend' Shelby. She wouldn't give her much time but she'd be nice to her for as long as it was convenient. If Shelby gives Athena a reason to be nice to her then perhaps Athena will indulge her but it is doubtful. I don't think Athena would consider her an equal but perhaps she would put up with Shelby if it got her something -- perhaps the boyfriend? xD
Oh yes, Athena will love Maya. She'll definitely poke fun at the fact that she'll never dance again. She'll cruelly point out that Elijah will never love her (I presume she still fancies him. I need to post there xD) and will just make her life a living hell. And to top it off Maya is already depressed so Athena will have a field day.
She's so mean! D:
@Yumi - I'm going to start with the apps I read first. xD
Jake will be most interesting. I expect Athena will be his worst nightmare. She'll mock him for his intelligence and bait him so he shouts at her. Then of course she'll wait to he gets really angry, hex herself and burst into tears - blaming the whole affair on him before running to Elldir. Oops -- there goes Jake's life -- expulsion in one hit. (I wouldn't let her expel him or get him expelled but I like the idea of the first bit. It sounds fun in a twisted sort of way).
I can't really find anything solid for Athena to pick on Ryo for but I think she could find something. Obviously his father's death is a good point (if you're looking at it from her point of view) but blondes don't do it for her so she can complain about that and also he's probably just a wee bit too sweet for her liking. So there you go, she'll probably just ruin is day with well placed cynicism and b!tchiness.
I love how one of Yumi's goals is to be evil. That made me grin. xD This'll be another dead parent angle. Athena will have no time for Yumi at all. She won't like her and see her as some sort of wannabe instead of the real deal. She'll steal her books on Voldemort, mess up her stuff and just generally ruin her day. Unless of course there is a reason for Athena to be nice. Nice Athena is scary. This character terrifies ME and I made her. xD