Hermes

Hermes (Ερμής in Ancient Greek) is the Greek god of roads, speed, messengers, travel, thieves, and athletics. His Roman counterpart is Mercury. His colors may be green and white, due to Luke's burial shroud being those two colors.

The Sea of Monsters
During The Sea of Monsters he appears to Percy Jackson on the beach where he motivates the young demigod into going on a quest despite the fact Tantalus denied his request. The god also lends some help to Percy and his friends by supplying them with some handy magical items such as a thermos which acts as a compass and releases winds from the four corners of the earth and some vital vitamins. The real reason behind Hermes obligations is in the hopes Percy will bring Luke, one of his numerous sons, back from the side of Kronos. Later, when Hermes brings Percy a letter from his father, Percy guiltily tells Hermes that he's sorry, that Luke wouldn't listen to him, and they ended up trying to kill each oher. Hermes comforts Percy, and says that there will be time for Luke to change his mind, and that immortal families are always messy, and there isn't much anyone can do about it. He seems to want Percy to defy Tantalus, Because he may have thought Percy could bring Luke to his senses.

The Titan's Curse
He also makes a very minor appearance in The Titan's Curse when Percy is trialed by the twelve Olympians. He defends Percy fully and started the debate with the line

"All in favor of not disintegrating him?" when Apollo tried to do a haiku.

The Last Olympian
He makes five appearances in The Last Olympian: three in present time and two in a flashback. Hermes gets angry with Annabeth because she wouldn't run off with Luke, and Hermes is afraid that Luke won't have a chance now. Percy gets angry at him and asks him that if he loves Luke so much, why didn't he be around when Luke was a kid instead of abandoning him? Hermes is furious at the implication that he had abandoned Luke, and he and Percy do not speak until Luke dies, when Percy apologizes for his words. Hermes forgives Percy, but is still grieving over his son. When The Fates take Luke's body, he gives him a final blessing. When Percy forces the gods to swear that they will claim their children by age thirteen, Hermes gives Percy a list of his children outside of Camp Half-Blood and asks him to personally escort them the the camp; Percy promises that he will.

Physical Description
He is described as appearing to resemble a middle-aged man with an athletic figure-slim and fit with salt-and-pepper hair (as a jogger) and in his original form, black curly hair, elfish features, and a sly grin. He has been known to sport nylon running shorts and New York City Marathon T-shirt while jogging, an outfit similar to a mailman's when delivering mail with a pith helmet which sprout wings, and a suit. He carries a cell phone which turns into a caduceus. He has been known to sport winged shoes, as said in the books.

Children
Hermes has many children and all undetermined children go to Cabin #11 as explained by Luke in The Lightning Thief. His most mentioned child is Luke, who he seemed to love very much as seen in The Last Olympian when he blessed Luke and kissed his forehead before having the Three Fates carry off his body personally. Poseidon also told Percy in The Titan's Curse, that Hermes loved Luke so much up to the point that Luke became Hermes' Pride and Joy.

Demigod Children

 * Luke Castellan


 * Connor Stoll


 * Travis Stoll


 * Harry Houdini
 * Gus
 * Harriet Tubman

Immortal Children

 * Pan

Powers
It is not mentioned what supernatural powers Hermes has, but this much can be gleaned from what he is known for.
 * As Hermes is the god of travelers and the messager god, his children might be able to transport themselves like the children of Hades. This may be the case when Luke teleported at the end of The Lightning Thief.
 * Hermes is the fastest god and can travel the speed of wind due to his winged boots
 * Hermes is the god of thieves, so he might have a supernatural way of stealing things without others noticing.
 * Hermes presumable possesses the standard powers of a god.
 * As Hermes is the god of sports and athletes, his children might excel in athletics.
 * Hermes is the god of inventions, and he invented the Internet, so his children might have a knack for inventing and creating.

Items

 * A caduceus that Hermes usually keeps in phone form. It has two intertwined snakes named George and Martha, possibly from George Washington and his wife Martha Dandridge Washington, or (more likely) from the two main characters of the play "Who's Afraid of Virginia Woolf", a married couple who are frequently venomous towards each other.

Film
In the film, The Lightning Thief, Hermes was played by Dylan Neal. Although he did not have a speaking line, they did zoom up on his face during the Olympian Council scene when Percy claimed that Luke was the one who stole the Zeus' Lightning Bolt.

Trivia

 * Hermes is the only god that can travel between the Underworld and the mortal world freely.
 * Hermes is mentioned in the book The Red Pyramid, also by Rick Riordan, the first book in The Kane Chronicles.