Born and raised in London, he was a member of the local Italian community. He was young, brash, and confident but much of this was simple bravado. "Dino" to his family and close friends, he had started working when he was only 10 to help support his large family. Eventually, he did what many poor did.. he joined the military. Antonio went into the British Navy and one of his first assignments saw him entering the Cretan Revolt.
Antonio dutifully followed orders and charged, with his fellow British sailors and marines, the Governor's palace on Crete. While he was severely injured, the others were all massacred. As he bled out, one of the true instigators of the revolt revealed herself. She knew she needed more fodder to throw at the Camarilla, so she embraced the dying young man.
Antonio managed to dig himself out from the mass grave he was thrown in and started his new life as a Sabbat. Eventually, it was found that his jovial, brash, and youthful appearance put many at ease. He was able to infiltrate Camarilla held cities easily, often posing as either a Ventrue or Toreador. He would gather information on low-level members and then hand that information off to the strike teams to facilitate various attacks.
While in Miami, he is commonly referred to as "007" due to his commitment to the character as a guise. Many took him to be either a rather unhinged Ventrue or a Malkavian due to his devotion to the false identity.