Tritagonists

A Tritagonist is considered as the third most important character in a story. They usually share a strong bond with the protagonist and the deuteragonist, normally as a family member or a loyal friend.

A New Day

 * Wendy Corduroy is the tritagonist of the story.

iSurvive the Zombie Apocalypse

 * Samantha Puckett is the tritagonist of the story.