Echidna - Half woman, half snake. Mother of many monsters
Eros (Also known as Cupid) - God of love
Eos - Goddess of dawn
Echo - Nymph, cursed by Hera to only be able to speak the last word of others
Erato - One of the nine muses, represents literature, science, and the arts
Erebus - God of darkness
Epimetheus - Brother of Prometheus, husband of Pandora
Eris - Goddess of strife and discord
Euryole - One of the three gorgons.
tell me if there's anyone/anything i missed!