Michael: She wasn't in the DA, mostly because she was afraid of being kicked out of school so close to graduating, and I'm not entirely sure if she was asked, but I do think she was friends with Cedric. so that sounds good!
Marietta: She probably would have taken a step or two back during outbursts, but wouldn't hold it against her. She herself has times where she gets too frustrated. lol
Ron: Might be fun to see what happens if/when she gets rescued lol
Samara: Actually.. I kinda agree with this one. Not much there, is there?