Middleston or Hiddleston?

Tom Hiddleston, well known for his character as the God Of Mischief, Loki in Thor has gone missing. He had left London and the screen without any warning. Where has he gone to? What is going to happen in the period of him being Missing In Action on the screen? Just as Tom had disappeared, there was a new colleague at Teena's work place. He does has a bit of resemblance to Tom. Just that he had straight black hair instead of curly blond hair, wears a nerdy spectacles and had bucks teeth.