S01E13Person of Interest season 1 episode 13: Root Cause
Aired 2 February 201243 minRated M
Where to watch Person of Interest Season 1 in Australia
Person of Interest season 1 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 “Root Cause”
The Machine gives Reese and Finch the number of a down-and-out man who has been pushed too far, and they're forced to turn to former Person of Interest, Zoe Morgan, for help.
Episode summary: TMDB.
Before you watch
- It is episode 13 of 23 of season 1, so watch episodes 1 to 12 first.
- It runs about 43 minutes.
- Directed by Richard J. Lewis, written by Erik Mountain.
- TMDB users rate it 8.1 out of 10 (38 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
- Richard J. Lewis
- Writer
- Erik Mountain
- Guest stars
- Paige Turco as Zoe MorganBrennan Brown as Nicholas DonnellyMyk Watford as Scott PowellDamian Young as Pete MathesonAmy Hargreaves as Leslie PowellVictor Slezak as Michael DelanceyDan Ziskie as Gene AtkinsBill Cohen as Pawn Broker
Credits: TMDB.
More from Person of Interest Season 1
Every episode of Season 1Person 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.