Screaming Skull was a costumed criminal active during the 1940s.
He later reformed after apparently finding religion and becoming a born-again Christian in the early nineteen eighties. He was later married and had two kids.
In Mason's final moments, he has a fantasy of beating his old enemies. Among them, is a figure wearing a hood and a skull mask. It is unconfirmed if this figure is supposed to be Screaming Skull.