His father, Antonio Sabàto Sr., is also an actor and brought the family to Hollywood when Antonio was just 12. They lived in Beverly Hills, and Antonio attended Beverly Hills High. They lived in several sections (primarily in Beverly Hills), but when Antonio was 16 his family moved to a trendy part of Los Angeles known as Marina Del Rey.
Antonio was initially married to actress Alicia Tully Jensen
from 16 May 1992 to early 1993 (much of that was a legal separation). On 6 August 1994 his girlfriend of a couple of years, Virginia Madsen
, gave birth to their son Jack. The two never wed. On 29 August 2002 he had another child, daughter Mina Bree, with long-time girlfriend Kristen Rosetti, a model.
He also has his own production company, NAMTAB Productions. Read backwards, it spells 'BATMAN', which Antonio happens to be a huge fan of. He is also a great supporter for many charities.