American actor Michael Imperioli is set to return to hit US TV show LAW + ORDER for one episode. Imperioli, who has played Christopher Moltisanti in THE SOPRANOS since it debuted in 1999, will reprise his role as Detective Nick Falco in a show set to screen in May (06). Imperioli appeared in four episodes in the last season of Law + Order when he filled in for Jesse L Martin (Detective Ed Green) while he shot the film adaptation of RENT.