hellboy
A fictional demon known for his red skin, filed off horns and massive right hand made of stone. He is a superhero created by Mike Mignola and published by Dark Horse Comics.
He was summoned to Earth by Nazi occultists as an infant before being discovered by the Allied Forces. As he grew older, he became part of the Bureau for Paranormal Research and Defense (BPRD), being one of their best paranormal investigators.