Patrick Stewart had plenty of sexual charisma. It's a commonly known fact. Whoopi Goldberg, as Peter says, had her moments here and there. Marina Sirtis was quite appealing in a low key sort of way, though I agree that her speaking style was a little odd. Hardly a "rubber fish" though! That was not fair at all, Peter. Some people found Worf sexy too. Then there were those women who longed for some time alone with Data. There's someone for everyone...

Oh, and a few people found Riker sexy, specially after he grew the beard.