
Originally Posted by
ReachfortheSky
Mr. Charrington pretended to be an ally or friend to Winston and Julia because he was a part of the Thought Police and it was his job to try and catch thought criminals. So he allowed them to rent out his room above his shop as a way to ensure their trust and make them believe that he truly was just a meager prole trying to earn a few extra dollars. But in reality he was trying to catch them breaking laws that were meant to be enforced. He convinced Winston that his room was extremely safe and private without a telescreen because he was a "prole". So Winston but his trust in him and when Mr. Charrington got all the evidence he needed he brought in the Thought Police to capture them and take them to the Ministry of Love to be put through extreme torture. Mr. Charrington appears to be younger because in the novel it states that the government would often perform plastic surgery to modify or completely change their look. That's why Winston barely recognized it to be Mr. Charrington. Mr. Charrington was a Thought Police not a fake.