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Often, things seemed to go sideways when outsiders crashed the party. The creators meant well for sure, wanting to shake up the characters' privileged day-to-day. Sometimes it worked. A big "thank you" to Georgina (Michelle Trachtenberg) who's Machiavellian tendencies never disappointed, Cyrus (Wallace Shawn) who as the stepdad of Blair (Leighton Meester) brought comic relief as well as poignance, and Ivy (Kaylee DeFer) who brought the crazy. But then there were the other storylines that just went away (for good reason).