Alright, so, I have a chatroom for my FMA Brotherhood RP, but I need people to join it and help out!

The RP will feature my Original Character for FMA Brotherhood, Karina, who is a homunculus with a split personality.
She is both Doubt and Vanity, and her Ouroborus is located:: Doubt: Left shoulder. Vanity: Right shoulder.
Doubt is more shy, while Vanity is straightforward and likes a fight.
As one, Karina's appearance is this:
Just a little shorter than Envy, in between tan and pale, hair past her calves and is silver-grey, eyes are bright green.
She has feelings for Envy, but tries to hide it.
She has also lost most of her memory, and it comes back to her in bursts of flashbacks, that hurt her.
She was somewhat of a partner to Envy.

I need people to act as the following characters:

Edward Elric
Alphonse Elric
Winry Rockbell
Greed/Ling
Roy Mustang
Riza Hawkeye
Alex Armstrong
Lust
Gluttony
Envy
Pride
Wrath

And other featured characters.

Help, yes?