Spectacular Silver Earthling

Hubcap used to be a rescue bot, getting humans out of every boneheaded scrape imaginable. His new career as a TV star suits him much better: he can poke fun at the humans instead, while harvesting jetpods and tackling alien predators faster than any of them. It doesn't hurt that he's also immune to the mysterious "space frenzy" that keeps sending his coworkers into a froth. The robot worries for his human friends, though he would never admit it. Not when it's much more fun to deploy weapon...