<P> Raúl Eduardo Esparza ( born October 24 , 1970 ) is an American stage and television actor , singer , and voice artist , best known for his role as New York Assistant District Attorney ( ADA ) Rafael Barba in Law & Order : Special Victims Unit . He has received Tony nominations for his role as Philip Salon in the Boy George musical Taboo in 2004 ; Robert , an empty man devoid of connection in the musical comedy Company in 2006 ; a lazy and snarky man in Harold Pinter 's The Homecoming ; and an aggressive volatile movie producer in David Mamet 's Speed the Plow . He played the role of Riff Raff on Broadway in the revival of The Rocky Horror Show and the role of Caractacus Potts in the Broadway musical Chitty Chitty Bang Bang . </P>
who plays the prosecutor on law and order svu
Raúl Eduardo Esparza