Review: elements of a story

Categories of different types of stories, such as science fiction, comedy

What is the term for the character who opposes the main character in a story?

What is the term for a person who “sees” the action in a story?

What is the term for when and where a story or a play happens?

What is the term for the main character of the story?

What is the term for what happens in a story or play?

What is the term for the people or animals within a story or play?