A is for Alyssa and Alynna. Ogawa and Nechayev.
B is for Bob Wesley.
C is for Charles Tucker, he's often called Trip.
D is for Death by Airlock. Not a fun way to die.
E is for Elim.
F is for Ferengenar, A planet where it always rains.
G is for Gary 7.
H is for Humons, which is how Ferengis call Humans.
I is for Incoming Transmissions. (from the big giant head?

)
J is for Janice Lester quote "Now you know the idignity of being a woman!"
K is for Kahn, because I believe he's not mentionned enough.
L is for Locutus of Borg, baldy geezer, doubles as Picard
M is for the Mintakans. They worshipped Picard.
N is for Napeans, one threw himself in a plasma stream on Picard's ship.
O is for Ornery Ornarans.
P is for Picard, the one named Jean-Luc was captain of the Enterprise-D... until it crashed and the Enterprise-E... until it crashed...
Q is for Q who is a permanent nuisance for Janeway and Picard.
R is for Riker. He was given Q powers for an episode.
S is for Solbor. He was killed by Winn.
T is for Tom Paris, he turned Harry's date into a cow.
U is for Mirror Uhura.
V is for Valeris, She betrayed Spock, her mentor.
W is for Will Riker's father Kyle.
X is for Xindi Evil Plan to destroy the Earth.
Y is for You Idiot. Quark keeps telling that to his brother Rom.
Z is for Vulcan Zombies, the trellium D kind.