3. Tazzik
Two words that just sound fantastic together; 'Salarian hitman'. Previously the most interaction we've gotten with the Salarian race is through either Mordin's quirky sing-a-long ways, or a handful of conversations on various planets with some survivors of missions or quest-givers. Basically we're yet to see them in more of a powerful role - which is exactly why Tazzik would be a perfect addition to the squad. Embroiled in the post-Normandy explosion of plot threads that is Shepard's body retrieval, Tazzik plays a vital role alongside Liara and Feron as another in the former's command, however it's more down to his stance as a Salarian getting stuck into more mercenary-styled affairs that elevates him above the rest.