John Proctor
John Proctor had an affair with Abigail Williams, which made him hesitate before finally telling that she wasn't truly afflicted by the Devil. He knew the truth from the start, but chose to try and protect Abigail. Elizabeth (his wife) had cast Abigail out of their household when she found out about John's lustful relations with her. When Abigail tried to send Elizabeth to the gallows, John finally came clean. He signed a confession so as not to hang, but then refused to let the paper be shown to the public. He ended up going to the gallows and hanging, because he refused to lie for his life, thinking that if he did that he would desecrate the brave, truthful lives already extinguished.