"On Nov 7, production on NBC’s Medium was temporarily shut down when an extra kept interrupting a tense courtroom scene involving series star Patricia Arquette. Security stepped in and forcibly removed the troublemaker from the jury box, and it’s only then that everyone’s sixth sense kicked in: The unruly actor was actually Sacha Baron Cohen in disguise as his latest Borat-like creation, flamboyant fashion reporter Bruno. “No one had a clue it was Sacha playing Bruno,” whispers a Medium insider. “It’s amazing he was able to infiltrate the set and pull this off."