Banner is son to Brian, an abusive father who killed Banner's mother while she tried to protect her son from his father's delusional attacks, and cousin to Jennifer Walters, the She-Hulk, who serves as his frequent ally.
Banner adalah anak dari Brian, seorang ayah kasar yang membunuh ibu Banner sementara dia mencoba melindungi anaknya dari serangan delusi ayahnya, dan sepupu Jennifer Walters, She-Hulk, yang melayani sebagai sekutu.