Satyr

About
A Satyr is explained as men with hairy goat legs and hooves, goat horns, and pointed ears that may look like those of a goat's. When in public, they will be clumsy, for they have to wear fake legs to be unsighted to mortals or humans. They are always in search of Pan, the ancient god of the Wild.

One known satyr is Grover Underwood, a friend of Percy Jackson. Grover was sent to search for demigods and found Percy, so he became a friend of Percy. He had to make sure that Percy stayed out of trouble, which was hard with Percy being the son of Poseidon.

Roles
Many satyrs go to Camp Half-Blood to become a Searcher. The role of a Searcher is to find demigods and report them. Others even protect and/or watch over the demigod if needed. Later in a satyr's life, they will usually conduct a search of Pan, the god of the Wild. Long ago, Pan was captured/lost to the modern civilization- tearing apart the wild would naturally lose Pan.