Latina/Klingon B'Elanna Torres of Star Trek: Voyager and Belter Naomi Nagata of The Expanse, are our favorite chief engineers. Besides being two of the smartest characters in sci-fi, they also have enthralling story arcs that border on 'messy'. All flux couplers being equal, our final question is, "Who would you want on your side in a fire fight?"

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And we give a special shout out to our sound engineer DoS, the Anonymous One. Find him at [email protected]