Nappa is a powerful Saiyan warrior from Planet Vegeta and serves as a high-ranking officer under Prince Vegeta in the Dragon Ball Z series. He arrives on Earth alongside Vegeta with the intent to conquer the planet and gather the Dragon Balls. Known for his imposing build and ruthless fighting style, Nappa causes significant destruction and challenges the Z Fighters before ultimately being defeated by Vegeta. His role marks a pivotal point in the Saiyan saga, showcasing the threat the Saiyans pose.