Gus is a Greek demigod, a son of Hermes, and a former camper at Camp Half-Blood. He attended Camp Half-Blood in 1988.
Percy Jackson sees a pair of fuzzy dice that were stolen from Chrysaor's Honda Civic in 1988 by Gus. These dice can still be found today residing in the Big House Attic.
It is not mentioned what supernatural powers Gus has, but this much can be gleaned from what he is known for.
- Hermes is the god of thieves, so Gus has an excellent skill of stealing things without others noticing. He was even able to steal from Chrysaor, a notoriously dangerous pirate.