Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Taraji P. Henson Joss Carter Actor Kevin Chapman Lionel Fusco Actor Amy Acker Root Guest Star Jay O. Sanders Special Counsel Guest Star Cotter Smith Denton Weeks Guest Star Boris McGiver Hersh Guest Star Emily Robinson Hanna Frey Guest Star Kevin Loreque Trent Russell Guest Star Jeremy Kushnier Cody Grayson Guest Star Ryan Andes Shep Guest Star Bill Cwikowski Fat Frank Guest Star Mercedes Griffeth Samantha Groves Guest Star Che Ayende Deputy Guest Star Richard Bekins Hanna's Father Guest Star Margo Martindale Barbara Russell Guest Star Rebecca Metz Barbara Russell (1991) Guest Star Maddie Jo Landers Crystal Guest Star Loudon Wainwright Sheriff Landry Guest Star Justin Patterson Motel Manager Guest Star Abdel Gonzalez PDE Driver Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer David Semel Executive Producer Greg Plageman Executive Producer, Writer Patrick Harbinson Writer Jon Cassar Director