A is for Mr Atoz and his Atavacron.
B is for Betelgeuse, a star in the Orion constellation (as viewed from Earth)
C is for Caithlin Dar
D is for Dorn (Michael Dorn)
E is for Exo III
F is for Finnegan.
G is for Gorn
H is for Helmsman
I is IKS (Imperial Klingon Ship)
J is for Jalad and Darmok at Tanagra
K is for Kurn