That's already more than half of the final main cast >_>
Personally I thought TNG's guest characters were mostly pretty boring, aside from Q. But all 7 of the mains were at least pretty good. Yar and Wes were kinda bad, but fortunately they were both gone for the last few seasons.
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I made a living on time trial blowing myself off to cross the finish line at ludicrous speed. -transience