Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Taraji P. Henson Joss Carter Actor Kevin Chapman Lionel Fusco Actor Sarah Shahi Sameen Shaw Actor Amy Acker Root Actor Robert John Burke Officer Patrick Simmons Guest Star Clarke Peters Alonzo Quinn Guest Star Enrico Colantoni Carl Elias Guest Star David Valcin Scarface Guest Star Laz Alonso Paul Carter Guest Star Kwoade Cross Taylor Carter Guest Star Brian Tarantina Yorke Guest Star Jessica Hecht Psychiatrist Guest Star Kevin O'Rourke Specops Psychologist Guest Star Bruce Winant QMI Manager Guest Star Brett G. Smith Team Leader Guest Star Richard Brooks Lead Marshal Pollack Guest Star Kohler McKenzie U.S. Marshal 1 Guest Star Shawn Andrew U.S. Marshal Guest Star Damian Young Therapist Guest Star Reginald Huc Ready Team One Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer, Writer David Semel Executive Producer Greg Plageman Executive Producer Amanda Segel Writer Chris Fisher Director