A is for Andromeda Galaxy. Home of the Kelvans.
B is for Barry Waddle, the identity assumed by Klingon agent Arne Darvin during his time being stranded in Cardassian space.
C is for Caitians. Pussies.
D is for Denevan neural parasite. Plastic flying vomit with a bite.
E is for Eminiar. Home of Anan 7. Dick.
F is for Farragut, the name of at least two Federation starships...one of which James T. Kirk served on as a newly graduated lieutenant and the other which ferried Enterprise-D survivors away from Veridian III after Kirk's death.