Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Kevin Chapman Lionel Fusco Actor Sarah Shahi Sameen Shaw Actor Amy Acker Root Actor Melissa Sagemiller Sandra Nicholson Guest Star Andrew Dolan Forensic Specialist Guest Star Barrett Doss Trainee Guest Star Tyler Evans Detective Mackenna Guest Star Gavin Stenhouse Detective Jake Harrison Guest Star Anthony Mangano Detective Kane Guest Star Julian Shatkin Aaron Guest Star Robbie Sublett Brent Holm Guest Star Kathleen McNenny Gina Kincaid Guest Star David Andrew Macdonald Ron Kincaid Guest Star Nikiya Mathis Operator A Guest Star Jesse Jensen Operator B Guest Star John Eric Parker Security Officer Guest Star Omar Gonzalez Solano Guest Star Carson Elrod Todd Guest Star Adam Pagdon Man Guest Star Tommy Walker Limo Driver Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer David Semel Executive Producer Greg Plageman Executive Producer Dan Dietz Writer Jeff T. Thomas Director