Protagonist characters are the main figures in a story, often driving the plot forward. They typically face challenges or conflicts that they must overcome, which helps to develop their character. Protagonists can be heroes, anti-heroes, or even flawed individuals, but they usually evoke empathy from the audience. These characters often undergo significant growth or change throughout the narrative. Their decisions and actions are central to the story's themes and messages. Examples of well-known protagonists include Harry Potter from the Harry Potter series and Elizabeth Bennet from Pride and Prejudice.