[also meme] the "the last character you tagged with is the protag of the last game you played" one. im technically late to this but what i want to say is
(ok technically the last game i played is bioshock infinite but i dont want to count it because i cant imagine satsuki as booker anyway and i havent even finished the game yet)
but anyway commander kiryuuin. she's definitely a biotic and probably uses sniper rifles as well because they are elegant and fuck classes restrictions anyway
nonon and sanageyama are her ashley and kaidan, except less boring and xenophobic. also nonon is like... ashley and liara and sanageyama is kaidan and james
he's probably like. garrus. except still mostly super devoted to authorized fighting crime, probably. he and satsuki still take flint (or whatever other npc) down together
but he's still like "i cannot acknowledge your methods" and satsuki probably throws him around with biotics for a bit and then he happily joins the normandy crew
inumuta...... probably plays the role of tali tbh. except instead of arranging a meeting with the shadow broker he decides to hack into his network himself lolololol
(or maybe he tries to steal something from satsuki's ship and goes "lmao yeah quarians amirite? haha" when caught and she still recruits him for his skill)
ragyo is probably both saren and udina. she's the human councilor but indoctrinated and full of reaper tech, except of course nobody suspects that until too late
(there is still some rogue spectre stand-in but they're mostly there for the sake of getting satsuki to become the first human spectre. ragyo is the final boss)