List of Percy Jackson and the Olympians characters
Briares: He first appears in The Battle of the Labyrinth when Percy, Annabeth, Tyson, and Grover rescue him from Alcatraz, where he is being held prisoner by Kampe. Briares is one of the three Hecatonchires ("the Hundred-Handed Ones"), elder brothers to the Cyclopes. His siblings are Kottos and Gyes. Like all other Hundred-Handed Ones, he has fifty different "faces" indicative of his moods. He is very frightened and timid due to his years of imprisonment and feels that he is of no use. Because of this, he runs away from Percy and his companions in the mazelike Labyrinth. However, Daedalus finds him and they both show up to fight for the Olympians in the battle at Camp Half-Blood at the end of The Battle of the Labyrinth. Briares seizes the chance to bury Kampe under a pile of rocks. At the end of The Battle of the Labyrinth, he goes to help the Cyclopes in Poseidon's forge. In The Last Olympian, Briares is shown fighting alongside Poseidon.