In the season finale of Billy on the Street, Billy is joined by Julianna Margulies for a brand new game called "That's Not Sia, It's Julianna Margulies!" Additionally, Elena returns to the show to face off against her real-life sister, Edie, in "The Other Sister". Finally, Lucy Liu helps Billy with the exhilarating game "What Does Lucy Liu Think?" Other games include "For A Dollar" and "Kris Jenner or Geppetto?"