- “Hey, look, pal! What happened, happened. OK? Can't change the past!”
- ―Achilles to Hades
Former student of Philoctetes who was well known as one of the greatest heroes ever due to his nearly invulnerable body, but after an incident where he was defeated by an attack to his right heel (which is the only part of his body that isn't invulnerable), he became the laughing-stock of Greece and an old washout, being forced to keep his vulnerable heel in a protective shoe. He temporarily gained his powers back, as well as removing his famous weakness in a deal with Hades, but lost it again soon after.
- In the original Greek mythology, Achilles is killed after his humiliating defeat.