Ancient Greek religion quest for the Golden Fleece and Theseus and the Minotaur. Many species existed in Greek mythology. Chief among these were the gods and humans, though the Titans (who predated the Olympian gods) also frequently appeared in Greek myths. Lesser species included the half-man-half-horse centaurs, the nature based nymphs (tree nymphs were dryads, sea nymphs were Nereids) and the half man, half goat satyrs. Some creatures in Greek mythology were monstrous, such as the one-eyed giant Cyclopes, the sea beast Scylla, whirlpool Charybdis, Gorgons, and the half-man, half-bull Minotaur. There was not a set Greek cosmogony, or creation myth. Different religious
G-Man (Half-Life) have him express an apologetic look toward Freeman as he 'regretted' to put Dr. Freeman in this situation, but then give a slight smirk or smile at the end to keep you guessing about his sincerity." Before animating the G-Man's facial expressions, Wood spent weeks in front of a mirror practicing the expressions on himself. In "Half-Life", the Nihilanth makes a vague reference to the G-Man as he talks to Gordon before their battle, referring to him as "not man" and adding "for you he waits..." In the start of Half-Life 2 a Vortigaunt was seen speaking to the G-Man