Okay, I was a little wary at first when I realized that Sonia Braga was playing Elena Derevko, because she didn't seem that much like Irina or Katya. But tonight...I completely changed my mind! She was 100% Derevko, baby! She had the accent, the mysterious and creepy demeanor, the bizarre fashion sense, even the walk! I completely buy her as Irina and Katya's sister now. It just all came together in this episode. Did anybody else notice a change?