Eric Packer is a fictional character from the novel "Cosmopolis," written by Don DeLillo. He is a wealthy young financier living in New York City who experiences a surreal day in his life as he navigates the complexities of wealth, technology, and modern society. Throughout the story, Eric travels in a stretch limousine, encountering various characters and situations that reflect his existential crisis. The narrative explores themes of capitalism, alienation, and the impact of technology on human relationships, making Eric a symbol of contemporary disconnection and excess.