Death Wish: 1500-1700

Voyager comes across a comet, inside which there is a single living being. It turns out to be a member of the Q Continuum (later designated as Quinn, Q is the Q played by John de Lancie). Quinn thanks the Voyager crew for freeing him from his imprisonment, then tries to commit suicide. But he ultimately fails (see omnipotence paradox) and instead of killing himself, he causes all the males on Voyager to vanish.