Denis Leary Det. Mike McNeil Actor, Executive Producer, Writer Lenny Clarke Det. Frank Harrigan Actor Diane Farr Det. Jan Fendrich Actor Adam Ferrara Det. Tommy Manetti Actor Bill Nunn Det. Terrence "Pip" Phillips Actor John Ortiz Det. Ruben Sommariba Actor Julian Acosta Guest Star Elizabeth Hurley Guest Star Keith David Guest Star Wendy Makkena Guest Star Karyn Parsons Guest Star Jesse Perez Guest Star Frank Santorelli Guest Star Jimmy Burke Guest Star Mary Beth Peil Guest Star James Yaegashi Guest Star Raymond Serra Guest Star Janet Hubert Guest Star Rory Culkin Guest Star Ray Bokhour Guest Star Peter Tolan Executive Producer, Writer Lauren Carrao Executive Producer Jim Serpico Executive Producer Mark Martineau Writer Daphne Pollon Writer Tucker Gates Director