Protagonist: James Leonite, junior. Local son of influential diplomat. Has a small time job clearing out broken trash compactors for recyclable goodies. His interest in women seems to border on the cybernetic. Once given a rifle (much to his own objections) he turns out to be a good shot and hates shooting people. In fact, the only person Jimmy shoots in the ENTIRE BOOK is his own girlfriend by accident!
Antagonist: Hir. Nine foot tall, three eyed lizard with big teeth, big muscles, big guns, and a big attitude. Hir is an arrogant son of a bitch with an unhealthy fascination with human females and revenge against his much nicer brother, Udo. Really, the only thing in common with Udo and Hir is they look pretty much the same and they both like human females. Which is why they are both exiles from their fellow giant space lizard society. Hir shoots lots of people while gunning for the main characters. He's also got an unending supplies of explosives, and a vaguely Terminator like tenacity. And, just like the Terminator, he gets killed by Jimmy's girlfriend. Except that instead of a hydraulic press, it's a gravity generator. And instead of down, it's up!
BLAT! Right into the ceiling!