Aether - Air God of the Upper Atmosphere.
Attempts to discover traces of the aether on Earth were carried out by Michelson and Morley in a famous experiment of 1887. Did they find any? Nope. This non-result led directly to Einstein's Theory of Relativity, but dashed their hopes of selling bottled aether to the physics community. (godchecker.com)
Chaos - the void which came into being before anything else.
Some say that Chaos was born from Mist, and that Mist was the first to exist. Others affirm that Chaos is not a void, but a rough unordered mass of things. It is also asserted that Chaos existed from the beginning, together with Nyx, Erebus (Darkness of the Underworld), and Tartarus, and consequently they consider Chaos to be as Nyx and Erebus: one of "the powers below the ground".
Chaos is also Goddess of Emptiness and Confusion. She is the gaping shapeless void who gave birth to the universe. (godchecker.com)
Chronos - said to be the personification of time. His name actually means "time," and is alternatively spelled Khronos (transliteration of the Greek) or Chronus (Latin version). Not to be confused with Cronus, a Titan.
Chronos was imagined as an incorporeal god, serpentine in form, with three heads—that of a man, a bull, and a lion. He and his consort, serpentine Ananke (Inevitability), circled the primal world-egg in their coils and split it apart to form the ordered universe of earth, sea and sky.
He was depicted in Greco-Roman mosaics as a man turning the Zodiac Wheel.
Rick note - Ben anyone?
Chronos is usually portrayed through an old, wise man with a long, gray beard, such as "Father Time." (Wiki)
Uranus and Gaia were ancestors of most of the Greek gods, but no cult addressed directly to Uranus survived into Classical times, and Uranus does not appear among the usual themes of Greek painted pottery. Elemental Earth, Sky and Styx might be joined, however, in a solemn invocation in Homeric epic.
Most Greeks considered Uranus to be primordial (protogenos), and gave him no parentage. (Wiki)
Hemera - Goddess of Daytime and Daylight.
Nyx - Goddess of the Night and daughter of CHAOS.
Being a real night person, she loves the dark. Which explains why she is the consort of EREBUS the God of Darkness — or at least liked him enough for a fling which resulted in AETHER, HEMERA and the FATES.
Every evening she coaxes him out to spread his gloomy darkness, which obscures the shining AETHER and lets the stars come out to play. It's up to daughter HEMERA to waft away the darkness every morning to let the sun shine. (godchecker.com)