Other Types of Characters I Think it Could Be Fun to Play:

The Picard

Sorta. Some kinda diplomat/politico. Much talking into/out of situations. All the leadership skills

Stupid Lucky Guy

Gambler spec? Basically sucks at everything but manages to blag it anyway. Sometimes.

Big Fighty Boi

Mandalorian maybe, basically going for an Astartes. Walking tank, shoots/hits stuff and takes a pounding but no subtlety.

Or the opposite of that. Real good at smashing stuff up but tries to avoid it. - This kinda became KD-40N

Synth/Replicant

A droid that can pass as human (or a different species). All of the extra special bonus points for the other players not knowing initially too. A Gank could be a good disguise. Pass as a cyborg/augmented human for as long as possible.