It's Liz Gillies!
Yep, she posted this crazy pic as her new profile pic on twitter. A few days ago she showed off her costume...but any ideas what she's dressed up as?
Congrats to Wambie girls MarySioux, Amanda, and Sree for being the first three to guess right! And also to Aman885, who knew that Liz's middle name is Egan, which was the clue.