cassie possibilities

Cassie (Canon Pureblood-possible surname)
could be cassandra, cassiopeia, etc
Cassandra Runcorn has a nice sound to it, Sydney Montgomery would be nice and she'd love how her name would sound once married, she'd joke that's why she fell in love with him

27-28ish, short hair, fashionable (works at hair/beauty salon), prone to fawning over her friends in an over the top manner, prone to taking people's problems on her, very chatty, bright and flighty way of speaking, never seems to stop moving, has a lot of friends and correspondence, interested in theatre but parents didn't like it, living with boyfriend/fiance Sydney, halfblood, they also didn't like her living with him but oh well (v. old-fashioned family, maybe not rich but perhaps with pretensions? well enough off in any case)

Valorie Curry
http://swansong.insanejournal.com/101749.html
http://www.hollow-art.com/base/valorie-curry
http://asylums.insanejournal.com/quibblercons/70139.html#cutid1
http://asylums.insanejournal.com/quibblercons/70372.html#cutid1