Antagonist



Definition : a person who actively opposes or is hostile to someone or something; an adversary

Examples: Voldemort, Jack

In the Book: Jack is the antagonist in the Lord of the Flies. He opposed Ralph and Ralph's way of running the camp and leading the boys. He becomes a savage while Ralph continues to keep more civilized. He makes Ralph's job as chief more difficult and splits up the camp into two tribes, against Ralph's wishes.