Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Taraji P. Henson Joss Carter Actor Kevin Chapman Lionel Fusco Actor David Zayas Ernie Trask Guest Star Kelli Barrett Lily Thorpton Guest Star Ramsey Faragallah Dr. Farooq Madan Guest Star Michael Kelly Mark Snow Guest Star Brett Cullen Nathan Ingram Guest Star Elizabeth Marvel Alicia Corwin Guest Star Darien Sills-Evans Tyrell Evans Guest Star Bill Heck Rick Morris Guest Star Frank Deal Doug Stanley Guest Star Cotter Smith Denton Weeks Guest Star Peggy J. Scott Mrs. Fuentes Guest Star Ángel Marrero Gangbanger Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer David Semel Executive Producer Greg Plageman Executive Producer David Slack Writer Stephen Williams Director