A hellspawn is fictitious creature from the popular comic book Spawn. The main character in the series, Spawn, is himself a hellspawn. The hellspawn are controlled by Malebolgia, the supreme master of Hell, and are mainly used as an officer corps for his army of Hell. Most hellspawns were once human, but were tricked into making a bargain with Malebolgia after arriving in Hell. He would agree to return them to Earth, if they promise to return later on and become a Lieutenant in his army of Hell.
Jo: Our dads were in California: Devil's Gate Reservoir. They were setting a trap for some kind of hellspawn. John was hiding, waiting, and my dad was bait.