Auggie Pullman is the main character in the novel "Wonder" by R.J. Palacio. He is a young boy born with a facial difference, which has made it difficult for him to fit in with other children. Auggie is intelligent, kind, and has a love for science and adventure. Throughout the story, Auggie navigates the challenges of starting school for the first time. He faces bullying and acceptance from his peers, learning important lessons about friendship and self-acceptance. Auggie's journey emphasizes the importance of kindness and understanding in overcoming differences.