In the Person of Interest episode “.exe,” Reese (James Caviezel) and Shaw (Sarah Shahi) run after Finch (Michael Emerson), who makes a brash plan to infiltrate a maximum-security government facility which could bring an end to Samaritan, the Machine, and himself. Along the way, they come across Nathan Ingram, co-founder of IFT — Finch’s oldest friend.
Ingram is portrayed by Brett Cullen. He’s known for his roles on Devious Maids (Michael Stoppard), Under the Dome (Don Barbara), Make It or Break It (Mark Keeler), Damages (Wayne Sutry), Lost (Goodwin Stanhope), Friday Night Lights (Walt Riggins), Ugly Betty (Ted LeBeau), The West Wing (Governor Ray Sullivan, the Republican from West Virginia), and Falcon Crest (Dan Fixx), among others. Person of Interest airs Tuesdays at 10pm on CBS.