You mean like Picard and Kirk? "More like Picard and Riker: a deuteragonist setup works really nice here. Every captain needs a first mate, right?" Okay, ow that's sounding more like me and Lottie. "After that, you ask yourself what roles your ship needs: every ship needs an engineer and a doctor; bigger ships need a dedicated pilot; ships on REALLY long journeys need farmers; that sort of thing!"