An actor, of Italian descent, born in the UK. Having several West End and Broadway credits, Antonio has more recently appeared in numerous television dramas (Litvinenko, The Continental, Hanna). Most notable was his outing as the real-life mobster Paul Kelly (a well-spoken "gentlemen mob boss," and founder of the notorious Five Points Gang) in the TNT/Netflix adaptation of Caleb Carr's novel "The Alienist. He is now appearing in Seson 2 of House of the Dragon on HBO.