A is for Altair glow water.
B is for Brandy. I said, Give Me The BRANDY!!
C is for Centauran slugs.
D is for Dominic Keating.
E is for Earth: the homeworld of two different spacefaring civilizations separated by tens of millions of years.
F is for Ferengi, Roddenberry's next great villian.
G is for Gorn eyes. In our universe they appeared to be compound in nature and were silver in color. In the Mirror Universe they were more traditionally reptillian in design and appearance.