Abigail is the niece of Rev. Parris. She lies to get what she wants and she manipulates others . Her goal is to have John Proctor all to herself and get rid of Elizabeth Proctor.
Elizabeth is the wife of John Proctor. She dislikes Abigail knowing she wants to get rid of her. Mary Warren is her servant and Elizabeth has been accused of being a witch from Abigail.
John Proctor was a farmer when he was thirty or so. Later on he married Elizabeth and had 3 children. Proctor then had a affair with Abigail Williams and he is now trying to gain his wife's trust back.