Cyclopes

A Cyclopes is a one-eyed monster. They are very big and sometimes considered ugly. Many Cyclops were born to Poseidon with nature spirits, therefore making them Percy's half-brothers.

According to Greek mythology, the first Cyclops were born to Uranus and Gaia. Uranus was not pleased with his newborn monster children and imprisoned them until Kronos overthrew him. During Kronos' rule, though, he did not release his Cyclops brothers, so Gaia and his wife Rhea became furious at him.

Known Cyclopses

 * Tyson
 * Polyphemus