He portrayed mobster John Gotti in the 2015 film The Wannabe as well as Gene Gotti in the 1998 made-for-TV film Witness to the Mob. He played the role of Niko in seasons one and two of the NBC show The Blacklist, and in 2015 played the role of Nicholas Bianco, the husband of Anna Bianco (Kathrine Narducci), in "Love Stories", the 13th episode of the fifth season of the CBS police procedural drama Blue Bloods. In the 2016 FX miniseries The People v. O.J. Simpson: American Crime Story, Siravo portrayed Fred Goldman, father of murder victim Ronald Goldman.