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 Bruce Altman Guest Star Gerry Bamman Guest Star Bryan Batt Guest Star Jimmy Burke Guest Star Robert Clohessy Guest Star Dinarte de Freitas Guest Star Charles Durning Guest Star Peter Tolan Executive Producer Jim Serpico Executive Producer Kerry Orent Producer Adam Bernstein Director