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 Paige Turco Zoe Morgan Guest Star Boris McGiver Hersh Guest Star Bruce Altman Dr. Ronald Carmichael Guest Star Warren Blosjo Ian Murphy Guest Star Ron Raines Bruce Wellington Guest Star Kyle Sutton Alex Wyley Guest Star Rachel Oyama Veronica Guest Star Antonio Edwards Suarez Thug 1 Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer David Semel Executive Producer Greg Plageman Executive Producer Amanda Segel Writer Omar Madha Writer