Alvaro Nettles was a former member of the United States Army and one of the Loonies. He was on the bus and helped Quinn McKenna fight the Predators to save Quinn's son, Rory McKenna. He was killed when he was on top of the Predator's ship and its shields activated. which cut his legs off, wounding him. This caused him to fly off the ship, killing him. He was also a strong believer in the Bible. He was the one who made Casey the unicorn.