He is the dark brooding son of CHAOS. Even with the lights turned out, he managed to father CHARON, THANATOS, HYPNOS, EROS and the FATES.
His consort appears to be NYX, the Goddess of Night. Although it’s hard to see what they get up to in the dark, we understand that EREBUS spreads his gloomy mists to obscure AETHER’s shining daylight... and HEMERA wafts him away again each morning.