Who or what is standing in the way of you character accomplishing the plot goal you just chose?
This antagonist could be a madman, boss, family member, teacher, enemy, competitor or organization. You want to create a great original antagonist - think back to the antagonists in your favorite films or stories to get ideas.
Corporation or head of corporation
Someone blackmailing someone
A teacher or mentor
Organization or head of organization
Thug or gang
Characters with different viewpoints
Character seeking revenge
Antagonist Idea For Your Story:
How is the plot goal for this antagonist in opposition with the protagonist’s plot goal?