Currently available on 2 streaming services.

Streaming, rent, or buy Person of Interest – Season 4:

You can buy "Person of Interest - Season 4" on SF Anytime, Blockbuster as download or rent it on SF Anytime online.

Cast

Jim Caviezel
John Reese
Michael Emerson
Harold Finch
Kevin Chapman
Lionel Fusco
Amy Acker
Root
Sarah Shahi
Sameen Shaw