Denis Leary Tommy Gavin Actor James McCaffrey Jimmy Keefe Actor Andrea Roth Janet Gavin Actor Michael Lombardi Mike Silletti Actor Jack McGee Chief Jerry Reilly Actor Steven Pasquale Sean Garrity Actor Daniel Sunjata Franco Rivera Actor John Scurti Lt. Kenny "Lou" Shea Actor Natalie Distler Colleen Gavin Actor Julie White Guest Star Michael Mulheren Guest Star Ed Sullivan Guest Star Anthony Mangano Guest Star Kevin Hagan Guest Star Curtiss Cook Guest Star Peter Tolan Executive Producer Jim Serpico Executive Producer Kerry Orent Producer John Fortenberry Director Jace Alexander Director Adam Bernstein Director