John Proctor was a central character in Arthur Miller's play, "The Crucible." He is depicted as a farmer in Salem, Massachusetts, during the Salem witch trials of 1692. Proctor is known for his strong moral character and his struggle against the hysteria surrounding the witch trials. Throughout the play, Proctor grapples with his past mistakes, particularly his affair with Abigail Williams. His journey reflects themes of integrity, guilt, and redemption as he ultimately chooses to stand up against the injustices of the court, even at the cost of his own life.