Minor tweaks to Garrus and you could have Saren. Make Shepard in his Cerberus armor and helmet and you could army dump that. Take that Cerberus armor, paint it black with a variant head and have Kai Leng. Collectors and Husks seem like great choices. I still say Zaeed, Miranda, Jack, Kaiden, and an Alliance soldier that could have head swaps to fill out Normandys crew. I know that's quite a bit, but I'm so anxious for this line to do great.