Cyclopes.
Giant, one-eyed monsters, the Cyclopes were said by Hesiod to be three offspring of Uranus and Gaia and named Brontes, Steropes, and Arges. Hated by their father, they were imprisoned in Tartarus until Zeus released them. Thereafter, they worked in the forge of Hephaestus making Zeus’s thunderbolts.
According to Homer, however, the Cyclopes were cannibalistic shepherds who lived in anarchy in a faraway land. When Odysseus landed on their island, he and his men were taken prisoner by the Cyclops Polyphemus. Polyphemus was said to be the son of Poseidon, who, after Odysseus managed to escape from the island, thwarted his homecoming in as many ways as possible.
In another story, Theocritus relates that Polyphemus lived in Sicily and wooed the sea nymph Galatea.

Classical Sources. Homer, Odyssey 9.104-115. Hesiod, Theogony 139—46. Theocritus, Idylls n. Virgil, Aeneid 3.616-81, 8.424—54; Georgies 4.i7off. Apoilodorus, Biblioteca 1.1.2, 1.1.4—5, 1.2.1. Pausanias, Description of Greece 2.2.1, 2.25.8, 7.25.6. Hyginus, Fabulae 49.

See also:
Galatea; Hephaestus; Odysseus, Polyphemus.