Jim Caviezel John Reese Actor Michael Emerson Harold Finch Actor Kevin Chapman Lionel Fusco Actor Sarah Shahi Sameen Shaw Actor Amy Acker Root Actor Carrie Preston Grace Hendricks Guest Star John Nolan John Greer Guest Star John Doman Sen. Ross Garrison Guest Star John Herrera Bodega Owner Guest Star Rayniel Rufino Raul Guest Star John Horton Priest Guest Star Daniel K. Isaac Virgil Guest Star Matt Walton Maybank Guest Star Joey Sorge NYPD Uniform Guest Star Robert Manning Jr. Zachary Guest Star Tyler Bunch Homeless Guy Guest Star Kristoffer Cusick Terry 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 Sean Hennen Writer Frederick E.O. Toye Director