John Fiore is an American actor, best known for his role as Captain Womack on CBS' Person of Interest, Detective Tony Profaci on NBC's crime drama Law & Order, and as Vinne Salerno on CBS' daytime drama, Guiding Light. His other notable television credits include Alphonse Nozzoli on Showtime's Brotherhood, mobster Gig Cestone on HBO's The Sopranos and Albert on ABC's NYPD Blue.

Film credits include Super Bowl Sunday, Anatomy of the Tide, Sweet Destiny, The Mulberry Tree, 13, The Broken Hearts Club, What Doesn't Kill You, Twelve, Black Irish, Passionada, Lift, Orphan, Meet the Parents, The Autumn Heart, Hit and Runaway, Where Angels Dance, Mystic Pizza, and One Crazy Summer.

John produced and starred in Meet the Mobsters, which told the story of a struggling lounge singer who works for a Mafia boss and is forced to sing secret messages to other mobsters through his act.