Nate (Chace Crawford) suspects that Juliet (guest étoile, star Katie Cassidy) is keeping a big secret from him and decides to confront her. Blair (Leighton Meester) schemes to undermine Chuck's (Ed Westwick) newfound happiness
In the video below, producers Joshua Safran and Stephanie Savage offer some insight from "Double Identity." They dish on Eva and Chuck's new persona (beware, they are in lit together) and also talk about the mysterious Juliet Sharp.