Denis Leary Tommy Gavin Actor, Writer Andrea Roth Janet Gavin Actor Michael Lombardi Mike Silletti Actor Steven Pasquale Sean Garrity Actor Daniel Sunjata Franco Rivera Actor John Scurti Lt. Kenny "Lou" Shea Actor Adam Ferrara Chief "Needles" Nelson Actor Callie Thorne Sheila Keefe Actor Larenz Tate Bart Actor Natalie Distler Colleen Actor James McCaffrey Guest Star Michael Zegen Guest Star Olivia Crocicchia Guest Star Jerry Adler Guest Star Cody Horn Guest Star Niels Jorgensen Guest Star Peter Tolan Executive Producer Jim Serpico Executive Producer Kerry Orent Producer Ken Girotti Director Evan Reilly Writer