Louis Wu is a fictional character from the science fiction series known as the Ringworld novels, created by author Larry Niven. He is depicted as a human who embarks on an adventure across the vast and mysterious Ringworld, a massive artificial structure that orbits a distant star. Wu is characterized by his intelligence, resourcefulness, and a strong sense of curiosity. In the story, Louis Wu is chosen to join a diverse team of explorers, including various alien species, to investigate the wonders and dangers of the Ringworld. His journey highlights themes of exploration, cooperation, and the complexities of advanced civilizations, making him a central figure in the narrative.