deuteragonist
/ˌdutəˈræɡənɪst/
noun
- The second most important character in a story, play, or film, after the protagonist.
- Many fans argue that the deuteragonist is more interesting than the main character.
- The deuteragonist often has a subplot that mirrors the main story.
- In the play, the deuteragonist is the hero's best friend who provides comic relief.