The main character in the novel "Moby Dick" is Ishmael, who serves as the narrator of the story. He is a sailor who embarks on a whaling voyage aboard the Pequod, captained by the obsessed and monomaniacal Captain Ahab. Throughout the novel, Ishmael recounts his experiences, thoughts, and observations about whaling, human nature, and the pursuit of knowledge, all while providing insight into Ahab’s relentless quest for revenge against the titular sperm whale, Moby Dick. Ishmael's perspective allows readers to explore the themes of fate, obsession, and the human struggle against nature.