foils

In literature, foils are characters who are intended to highlight particular qualities of another character by contrast. They have traits that are opposite or very different from the main character, which helps readers see the main character’s personality, decisions, or growth more clearly. For example, a brave hero might have a cautious foil who questions everything, emphasizing the hero’s courage. Foils are used to deepen the story’s themes and character development by providing clear differences that clarify the main character’s nature.