Percy Jackson and the Olympians: Legends

He is a middle-aged man with an athletic figure slim and fit with salt-and-pepper hair, as a jogger, and in his original form has a muscular build, curly black hair, blue eyes, elfish features, and a sly grin.

Hermes is, unlike many of the other Olympians, a generally reasonable and helpful figure and he has a greater understanding of mortals (much like Artemis). Hermes is not prone to the overt arrogance of some like Zeus or Ares, nor the character quirks like Apollo or Aphrodite. Part of this may be due to part of his job being to help mortals rationalize divine events giving him a greater understanding of things beyond himself. He is shown to care a great deal for his children (especially Luke) and to be far more accepting of others. Both traits are not common among the other major Olympians.

Post-war, Hermes resumed his role as the swift messenger of the gods, but with a deeper understanding of the fragility of life and the complexities of fatherhood. Determined to prevent future tragedies, he became more involved in guiding and protecting his children, both mortal and divine. His duties as a psychopomp—guiding souls to the afterlife—also took on new significance, as he aimed to ensure that every soul found peace.