J.K. Rowling’s Harry Potter series (Rowling 1998-2007) is an international literature phenomenon that is both cherished and critiqued. This investigation intends to explore the topic of altruism and egoism within the Harry Potter series, specifically the close relationship between the choices and sacrifices both the protagonist, Harry Potter, and the antagonist, Tom Riddle (also known as Lord Voldemort) make, and the defining difference between a hero and a villain within the series. It is also looking at the journey of a hero and how it symbolizes the efforts of youth, offering some insights into the human condition. This examination of the literature focuses on the theories of heroism by Joseph Campbell and Paula Faria (Campbell 1993; Faria 2008). It then analyses aspects of the Harry Potter series against these theories.