Not sure how you want to make up the overlays, but don't forget "Captain's Woman", ie Hoshi and Marlena Moreu. should be kinda manipulative, and uh...'easy on the eyes'.
Might want to 'tweak' existing overlays to fit a non-exploratory, more 'predatory' outlook. More weapons skills, aggressive attributes, and not so much in the brains department.
Oh, and "Agony booth Technician", you gotta have one of those...well in Kirk's time anyway.
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"Yes, it's the Apocalypse alright. I always thought I'd have a hand in it"
Professor Farnsworth