The character who is in conflict with the protagonist.

A character that shows little or no change, action or progress.

Characters that have constant change, activity, or progress.

The types of changes a character may go through are usually these types of changes.

A character who has many personality traits and the audience sees many different sides of this character.

A one-dimensional character, who doesn't show much personality.

A protagonist should be a dynamic character.

Protagonists and antagonists are considered minor or unimportant characters.

In the musical "The Lion King" which characters are considered the protagonist and the antagonist.