Just to be clear I am stating archetypes not rank trees.
When the Rogue Trader is a contemptor dreadnought, the Arch-Militant is a Ork Kommando, the Astropath Transcendent is an Eldar Warlock, the Explorator is a jokero, the Missionary preaches about the Four-Armed Emperor, the Navigator is Kharn the Betrayer, the Seneschal is from a minor (pre-industrial) xeno race whose economy is based on slaving, and the Void Master is a Tau.
They are all PCs.
What rules did you use for the Jokero and who on earth managed to become Kharn the Betrayer????
Navigator stop splitting people's heads open and plot a course for........ "Kharn Kill!!!!" *Thunk*.......................