In the Person of Interest episode ‘6,741,’ the team worries about Shaw (Sarah Shahi), who since escaping her captors has been acting paranoid and reckless. She's not to blame, given that her captors John Greer (John Nolan) and his right-hand man Jeremy Lambert (Julian Ovenden) have programmed Shaw to kill all of her friends.
John Greer is portrayed by John Nolan. Americans recognize the 77-year-old Englishman for his role as Fredericks in The Dark Knight Rises and Batman Begins films. In the 1970s, Nolan starred in three TV series: Shabby Tiger (Nick Faunt), Doomwatch (Geoff Hardcastle), and Daniel Deronda (Daniel Deronda). Fun fact: John Nolan is the uncle of The Dark Knight director Christopher Nolan and writer Jonathan Nolan who is also a writer on Person of Interest. Person of Interest airs Mondays at 10pm on CBS.
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