Is John Proctor a Antagonist or Protagonist?

John Proctor is the protagonist of Arthur Miller's play "The Crucible." He is a complex and well-developed character who struggles against the forces of evil represented by Abigail Williams and the Salem witch trials. Proctor is a good man who is trying to do the right thing, but he is also a flawed human being. His flaws ultimately lead to his downfall, but he dies with dignity and courage.