User blog comment:Zathronas/Speculative Author - What's next? part 2 the antagonists/@comment-25405817-20160308000623/@comment-24218038-20160308053609

No they'll just be witnesses. But what you call reluctant antagonist is actually called a ' foil ' in  writer's speak. But they won't even be that, a foil is someone with a different point of view than our main character that, depend on what type of story you write.

A - makes our antagonist question him or herself constantly which shows us the moral conflict inside out hero.

B - The antagonist doesn't question him or herself and his resolve against all odds is the reason they'll win at the end, usually turning the foil into their way of thinking.