just to report. Though he wont start as a a crew member. Volray will take a field commander position once he is on the ship

Also. A rank option idea. Civilian or something like the sort.
a person that is not a crew member and has no real uses for the crew aside being on the ship as a... well civilian. Part of the ships inhabitants for often small reasons such as for their own protection or travelling with them for a while (like traders) amd stuff

or would that fall under an ally. Cause I feel that an ally also has a use for the crew in general)