He is a Rodian--that's a Greedo to you (and to me 2 days ago before I looked up "Rodian" on Wookiepedia).
He has some cyborg parts coming out of his face because...because when you're making a Star Wars guy you want to somehow take advantage of the fact it's Star Wars but then if you're like me, on the other hand you don't just want more of the exact same Star Wars.
He represents Barhok, a planet Jez invented where mind-controlling Serpent Queens eternally fuck with each other.
(Jez's best planets are just their own thing, really, no more Star Wars than Dune or any other "Imperial" sci fi. But saying "it's Star Wars" provides a very quick and easy backdrop-download. Even if we never run into anything unique to the movies.)
How you end up as a Senator from a completely nondemocratic planet I don't even know but me and Jez decided he's like playing a double game: pretending to loyally represent the serpent queens to the Empire and vice versa but secretly loyal to neither and working for the Rebellion.
And I haven't played session one yet.
Hell he doesn't even have stats yet.
I have mixed feelings about Senator Throx, he's got a lot of shit going on and he could yet be dead mere hours in. A little wad of wasted plot. Plus he'll be fighting for attention with various hammerheads, walrusmen, murder robos and whatever other cantina of freaks everyone brings to the table. Trying not to get attached. But I like him already.
Such are the risks we take, I suppose. If I didn't care it'd be less fun.