Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Kevin Chapman Lionel Fusco Actor Sarah Shahi Sameen Shaw Actor Amy Acker Root Actor Adria Arjona Dani Silva Guest Star Mason Pettit Albert Weiss Guest Star Maddie Corman Leslie Thompson Guest Star Darren Lipari Officer Craig Guest Star Brian Russell Chief Wicker Guest Star T.J. Kenneally Larry Guest Star Julie Jesneck Laura Guest Star Robert Eckard Willy Guest Star Daniel J. Watts Marcus Young Guest Star Cormac Bluestone Mason Guest Star Victoria Arbiter News Reporter Guest Star John Leonard Thompson Dr. Victor Haskell Guest Star Brian Edwards Dave Guest Star Jonathan Tindle Doctor Guest Star Vanessa Wasche Delia Jones Guest Star J.J. Abrams Executive Producer Bryan Burk Executive Producer Jonathan Nolan Executive Producer David Semel Executive Producer Greg Plageman Executive Producer Lucas O'Connor Writer Kevin Bray Director