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Looking absolutely adorable, Michelle Trachtenberg attended the Halloween 2033: Adult Playground Event Series at 1Oak in New York City on Saturday night (October 31).
In a dazzling Victorian costume, the "Mercy" actress mingled and posed for pictures alongside Scott Sartiano at the party, which also drew out Michelle's "Gossip Girl" mates,
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Meanwhile, you can catch Miss Trachtenberg in her latest endeavor, "Mercy," which airs its next episode on Wednesday, November 4th at 8/7C on NBC.
Seeing Elisabeth Moss, Stiller and Meara as guest stars, the episode titled "The Last Thing I Said Was..." sees "Veronica come clean with Mike as a cancer patient fights treatment."
