Every story has a main character or protagonist- the hero or heroine - who is typically the one who will solve or fix the problem. The antagonist, or villain, will be the character who makes solving the problem near impossible for the protagonist. He or she should possess at least equal attributes (maybe more) as the protagonist. He or she may try to throw the hero/heroine off track.
he/she is right there and connected to the place
where the action is occurring.