In what ways is Achilles a bit like John Gardners Grendel?

Many similarities exist between the characters of Achilles and Grendel. One could begin by arguing that the two are, in effect, mirror images: Achilles is a man made superhuman by supernatural intervention, while the monster Grendel possesses human qualities in his level of intelligence, wit, and propensity for social commentary. Temperamentally, the two characters are alike: both have volatile tempers and can act rashly, even dangerously, when that temper is provoked. Driven by intense, sometimes...

Many similarities exist between the characters of Achilles and Grendel. One could begin by arguing that the two are, in effect, mirror images: Achilles is a man made superhuman by supernatural intervention, while the monster Grendel possesses human qualities in his level of intelligence, wit, and propensity for social commentary. Temperamentally, the two characters are alike: both have volatile tempers and can act rashly, even dangerously, when that temper is provoked. Driven by intense, sometimes rigid moral codes, both embark upon an heroic quest. Furthermore, both Achilles and Grendel can be arrogant in the assertion of their respective beliefs. Possessing superhuman strength, the two are fierce warriors who hate to lose or even admit defeat. One might also argue that both are tragic heroes who share a fatal flaw: pride.