A is for the Alpha Centauri system. Some of the very first interstellar colonists from Earth settled there after the invention of warp drive. Zefram Cochrane became one of them.
B is for Balock. Commander of the Fesarious. Which internally seems to be composed of big flowing curtains.
C is for Constable Odo.
D is for Daniels. He needs to come back and fix these last two movies. The timeline must repair itself.