Mother: Mac's mother's name is Agnes Demarco. She was never married to Mac's dad and the latter refused to pay child support so Agnes changed her children's Surnames for her own instead of their dad's one.
Father: Mac's father is Mac Smith III. He was an alcoholic and addict who left his family and Mac barely knew him.
Siblings: Mac has a younger brother named Hank.
Wives and kids: Mac is not married and he has no kids.
