S03E21Person of Interest season 3 episode 21: Beta
Aired 29 April 201443 minRated M
Where to watch Person of Interest Season 3 in Australia
Person of Interest season 3 is streaming in Australia on Netflix (subscription). You can also buy it on Apple TV from $29.99 and Prime Video Store from $29.99.
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Availability checked 16 November 2026.
What happens in “Beta”
As Decima uses Samaritan’s feeds to hunt Reese and Shaw, Greer exploits Finch’s greatest weakness in an attempt to lure him out of hiding: his love for his former fiancée, Grace Hendricks.
Episode summary: TMDB.
Before you watch
- It is episode 21 of 23 of season 3, so watch episodes 1 to 20 first.
- It runs about 43 minutes.
- Directed by Frederick E. O. Toye, written by Dan Dietz and Sean Hennen.
- TMDB users rate it 8.5 out of 10 (36 votes).
Person of Interest trailer
The official trailer for the series (no preview of this episode has been published).
Play video: Person of Interest trailer
Cast and crew of this episode
- Director
- Frederick E. O. Toye
- Writers
- Dan DietzSean Hennen
- Guest stars
- Carrie Preston as Grace HendricksJohn Nolan as John GreerJohn Doman as Ross GarrisonMatt Walton as MaybankJohn Horton as PriestKristoffer Cusick as TerryRobert Ray Manning Jr. as ZacharyDaniel K. Isaac as Virgil
Credits: TMDB.
More from Person of Interest Season 3
Every episode of Season 3Person of Interest episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.