O’Brien is a member of the inner party. Winston believes that O’Brien and Big Brother are like the same people because of their similarities. He had a good but hurtful relationship with O'Brien and talked to him about everything he was concerned with. Winston almost loves or adores O’Brien because he allows him to share his intellectual ideas to him. Later in the book, the reader finds out supports the Party and Ingsoc because he is actually agent of the Thought Police. Their relationship is the same as it is for Winston to Big Brother because just like Big Brother tortures him, so does O’Brien. O’Brien was on the opposing side the entire time and admits to Winston that he has to agree to their rules under the government. This makes Winston go crazy just like how Big Brother made him