In the Iliad certain heroic characters play major roles in the battles even though the reader knows that many more common soldiers must be involved. The heroes, however, are presented literally as greater human beings than the ordinary warriors. Some may have a divine or semi-divine parent, though the hero himself is still mortal and subject to death, unlike the gods. Heroes are of such stature that they sometimes provoke envy from the gods and on occasion may even fight with a god. Each hero is distinguished by a virtue but may also have an accompanying vice. For example, Achilles is the greatest warrior, but he is also petulant and self-centered. In terms of status, heroes are below the gods but above the ordinary warriors.