Flat characters have one main trait, while round characters are complex with multiple traits. Minor characters, like foils, serve to contrast or highlight qualities of main characters.
Flat characters in literature have only one main trait or characteristic, making them easily recognizable and lacking depth or complexity. For example, a messenger whose sole purpose is to deliver a message fits the description of a flat character. These characters are often found in genres like comedy or adventure.
Round characters, on the other hand, possess multiple traits and complexities, resembling real people with conflicting characteristics. They are harder to understand and fully describe, adding depth to the story. Hermione Granger from the Harry Potter series is an example of a round character.
Authors use minor characters for various reasons, such as providing contrast to main characters or highlighting specific traits. A specific type of minor character called a foil emphasizes the qualities of a protagonist through their differences, creating a more enriched narrative.
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