- Jim Caviezel (John Reese)
- Michael Emerson (Harold Finch)
- Kevin Chapman (Lionel Fusco)
- Amy Acker (Root)
- Sarah Shahi (Sameen Shaw)
Person of Interest — S4E19
Episode: Search and Destroy
Air Date: 2015-04-07
Runtime: 43 min
Overview
Reese and Finch scramble to protect a software CEO when his behavior becomes increasingly erratic following a hacker attack that reveals all his secrets and unravels his life.