In Greek mythology, the Minotaur was the son of Queen Pasiphae and a holy white bull. King Minos had angered Poseidon, so the god made his wife desire the beast.
Hercules is the Roman form of Herakles, who was the last mortal son of Zeus in Greek mythology. His supernatural strength was balanced by his lack of intelligence, yet while being a proud, easily offended man, he was also very loyal to his loved ones, just and penitent. He had a large appetite for food, wine, and women, while also being a champion wrestler and unerring marksman.
Iason was the Thessalian hero who led the Argonauts in the quest for the Golden Fleece, as part of the Greek myths. His father was King Aeson of Iolcus; mother uncertain. He was raised in secret by the centaur Chiron after his uncle usurped the throne and wanted Iason (and many of his relatives) dead. When he came of age, Iason set out to claim his throne.
Pythagoras was a Greek mathematician, born circa 570 BC, who gave us Pythagoras' Theorum (the square of the hypotenuse, which is the side opposite the right angle on a triangle, is equal to the sum of the squares of the other two sides). It is still taught in schools.
Ariadne was originally a Cretan vegetation goddess. In later stories, she was the daughter of King Minos and his wife, Pasiphae.