The Faun (also phaunos or faunus) is a rustic forest god or place-spirit of Roman mythology often associated with Ancient Greek Satyrs and the Greek god Pan. The faun is half human and half goat (from the head to the waist being the human half, but with the addition of goat's horns) manifestation of forest and animal spirits which would help or hinder humans at whim. Romans believed fauns inspired fear in men traveling in lonely, remote or wild places. The word panic is named after the Fauns' leader for this reason.
Faun in "The Horse of Bronze"
Fauns inhabited the southern region of the Italian Peninsula in the Inner Sea. Somewhat brutish and primitive in nature (and less aesthetic than their cousins the Satyrs), many Centaurs thought that they looked hideous, that the gods who made them were in fact trying to make a Centaur and couldn't wait to finish it.