Person of Interest Crossovers
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POI Star Trek Crossover by whomii2
The adventures of the crew of the USS Ernest Thornhill [series of one-shots]
Crossover - StarTrek: Other & Person of Interest - Rated: K - English - Sci-Fi - Chapters: 3 - Words: 2,276 - Updated: 12h - Published: 7/21 - J. Reese, H. Finch, Detective Carter, Lionel F. - Complete
Demons of interest by dark images reviews
This is technically a triple crossover but the third thing isn't...as well mentioned? as the rest of it.
Crossover - Person of Interest & Gravity Falls - Rated: K+ - English - Family/Supernatural - Chapters: 3 - Words: 2,757 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 7/26
Contingencies by whomii2 reviews
How the aftermath of Number Crunch, The Crossing, and Return 0 might have gone differently...
Crossover - Stargate: SG-1 & Person of Interest - Rated: K - English - Sci-Fi - Chapters: 3 - Words: 2,732 - Reviews: 2 - Favs: 3 - Follows: 3 - Updated: 7/20 - Published: 7/6 - J. Reese, H. Finch, Detective Carter, Root - Complete
Emergency Protocol Archimedes by Terapsina reviews
The Machine sees the sniper threat to Admin and Analog Interface in time and calculates that the best way to save them is to put into play an old emergency protocol; one The Machine created upon Root's request shortly before Samaritan came online. Alec Hardison receives a text message from an unknown number.
Crossover - Leverage & Person of Interest - Rated: T - English - Chapters: 4 - Words: 7,619 - Reviews: 3 - Favs: 9 - Follows: 13 - Updated: 7/15 - Published: 6/7 - [Alec H., Parker] [Root, S. Shaw]
In the End by whomii2
On a clear day John sees forever [post s5e13 Return 0]
Crossover - Sandman & Person of Interest - Rated: K - English - Angst - Chapters: 1 - Words: 509 - Favs: 2 - Follows: 1 - Published: 6/29 - Death, J. Reese - Complete
Quantum theory by RachelSkarstensboobs reviews
Shaw still works the numbers after Samaritan is defeated, something very unusual happens, she gets a number of a woman living in LA... . Once she is eye to eye with the number, she is shocked, its Root! but not really, she just looks like her. Shaw makes a quick note of just getting her number done quickly, but just like Root, Fred has a way of getting under her skin.
Crossover - Angel & Person of Interest - Rated: T - English - Angst/Hurt/Comfort - Chapters: 1 - Words: 2,166 - Reviews: 1 - Favs: 2 - Follows: 5 - Published: 6/26 - Fred B., Root, S. Shaw, Machine
Truth by Elysian2725 reviews
Crossover between POI and the Mentalist. Jane is Team Machine's number and he reveals some things about Shaw. Post 5x11
Crossover - Mentalist & Person of Interest - Rated: K - English - Angst/Hurt/Comfort - Chapters: 1 - Words: 606 - Reviews: 1 - Published: 6/14 - Patrick J., Teresa L., J. Reese, S. Shaw
The Island and the Machine by SunnyRea reviews
An island no one can find with healing properties and mystery and it is his destiny. The creation of something to protect us, to find the connections, an A.I. and his destiny to create. Both of them are special, both of them have a purpose and they both need each other more than anything else in the world. The unbelievable lives of twin brothers Benjamin Linus and Harold Finch.
Crossover - Lost & Person of Interest - Rated: T - English - Drama - Chapters: 10 - Words: 139,495 - Reviews: 15 - Favs: 9 - Follows: 9 - Updated: 6/6 - Published: 3/19/2015 - Ben, H. Finch
Sisterly Bonding by magicmumu reviews
Summary: Myka sees a disturbing picture of her sister as news of her death, but being an agent of Warehouse 13 proves that nothing is ever as it seems. (Warehouse 13/Person of Interest crossover, spoils 3/30 episode, femslash implied)
Crossover - Warehouse 13 & Person of Interest - Rated: K+ - English - Sci-Fi/Family - Chapters: 1 - Words: 3,523 - Reviews: 2 - Favs: 6 - Follows: 9 - Published: 6/3 - [Myka B., Helena G. W.] [Root, S. Shaw]
Welcome To My Reality by LauraCynthia
An idea that would not go away. Takes place after "Reassortment" and "Into Darkness" and is the last you'll ever hear from me on this subject. It just seemed like something Samaritan would do.
Crossover - Star Trek: 2009 & Person of Interest - Rated: K+ - English - Drama/Sci-Fi - Chapters: 1 - Words: 578 - Published: 5/25 - John Harrison/Khan, Samaritan - Complete
Prettt Little Liars of Interest by LegacyMermaid reviews
Mona's meddling caught Samaritan's attention. Now Root and Shaw have to save the day.
Crossover - Pretty Little Liars & Person of Interest - Rated: K+ - English - Humor - Chapters: 1 - Words: 1,688 - Reviews: 2 - Follows: 1 - Published: 3/30
Enemy of my enemy by randomitegirl reviews
During one of their trips, the Doctor and Clara find themselves in Samaritan's stronghold. After being forced to leave Clara behind, the Doctor turns to Team Machine for help in saving her. Doctor Who: pre-series 9 Person of Interest: 2 months after the season 4 season finale
Crossover - Doctor Who & Person of Interest - Rated: T - English - Drama/Suspense - Chapters: 22 - Words: 47,246 - Reviews: 11 - Favs: 12 - Follows: 16 - Updated: 2/26 - Published: 12/19/2015 - Clara O., 12th Doctor, H. Finch, Root
The Ghost in the Machine by Tamara Reuveni reviews
The team's latest POI is a forensic anthropologist and bestselling author whose tendency to rush headlong into danger makes her very difficult to protect. But her husband could have told them that.
Crossover - Bones & Person of Interest - Rated: K+ - English - Crime/Family - Chapters: 5 - Words: 4,026 - Reviews: 10 - Favs: 12 - Follows: 22 - Updated: 2/18 - Published: 2/7 - T. Brennan, J. Reese, H. Finch, Bear
On Paper by LithiumDoll reviews
Should be fine! If they can just work out exactly who's the client.
Crossover - Leverage & Person of Interest - Rated: K+ - English - Adventure - Chapters: 2 - Words: 3,632 - Reviews: 14 - Favs: 20 - Follows: 40 - Updated: 2/17 - Published: 1/10 - Eliot S., Alec H., H. Finch, S. Shaw
Business, As They Say, Is Business by Jedi Buttercup reviews
Elias couldn't help but smile in genuine good humor. It was so refreshing to meet another in his position with good manners; it seemed the story behind the 'Gentleman' John moniker was, at least in some part, the truth.
Crossover - Dresden Files & Person of Interest - Rated: T - English - Chapters: 1 - Words: 2,757 - Reviews: 5 - Favs: 11 - Follows: 6 - Published: 1/11 - J. Marcone, C. Elias - Complete
Loki'd by whomii2 reviews
Bear makes an unusual friend. So does Harold
Crossover - Thor & Person of Interest - Rated: K - English - Humor - Chapters: 7 - Words: 5,989 - Reviews: 11 - Favs: 6 - Follows: 8 - Updated: 1/4 - Published: 5/27/2015 - Loki, H. Finch, J. Reese, S. Shaw - Complete
Agents Of Interest by Captain Yaple reviews
With the Machine dead and the world 'corrected', who else will team Machine have to turn to? With a debt to the Machine, what will Coulson have to fear doing? With friends surrounding each other, what mountains will the Machine's assets move? Takes place right after S4 of Person Of Interest and before S3 of Agents of Shield
Crossover - Person of Interest & Agents of S.H.I.E.L.D. - Rated: T - English - Adventure/Sci-Fi - Chapters: 4 - Words: 19,795 - Reviews: 6 - Favs: 14 - Follows: 28 - Updated: 12/28/2015 - Published: 11/26/2015 - Root, Skye/Daisy
Someone With The Skills To Intervene by Jedi Buttercup reviews
One of Ivy's Master Archivists has chosen a very inopportune time to step out of his library. COMPLETE.
Crossover - Dresden Files & Person of Interest - Rated: T - English - Chapters: 4 - Words: 7,210 - Reviews: 26 - Favs: 66 - Follows: 66 - Updated: 12/23/2015 - Published: 4/17/2012 - H. Dresden, Ivy, J. Reese, H. Finch - Complete
Independent 22 - Tea and Oranges by Aadler
Every group has its Zeppo … and every Zeppo has his moment.
Crossover - Buffy: The Vampire Slayer & Person of Interest - Rated: K+ - English - Chapters: 1 - Words: 6,274 - Follows: 1 - Published: 12/8/2015 - Caridad, H. Finch, J. Reese, Lionel F. - Complete
Worst Case Complexity by eledhiel13 reviews
No one expected aliens when they woke up this morning. Part 3 in the series 'It's a Small World.'
Crossover - Person of Interest & Avengers - Rated: T - English - Chapters: 12 - Words: 21,765 - Reviews: 8 - Favs: 12 - Follows: 12 - Updated: 11/24/2015 - Published: 11/2/2015 - Complete
On the Subject of Irrational Numbers by Dlldarkwolf reviews
*SPOILERS FOR POI SEASON 4, EVEN IN THIS SUMMARY* Shortly after Team Machine lost Shaw, they get what appears to be an ordinary number. Dr. Henry Morgan seems like a normal person, if a little eccentric. But it soon becomes clear that the Machine has something else going on. **Updated to include the correct chapter 5**
Crossover - Person of Interest & Forever - Rated: T - English - Drama/Crime - Chapters: 10 - Words: 12,751 - Reviews: 3 - Favs: 22 - Follows: 12 - Published: 11/22/2015 - J. Reese, H. Finch, Henry M., J. Martinez - Complete
Old School (The Chaos AU, Part 15 The Romanov Stories Part 16) by LindaO reviews
When the Machine gives them the Number of a small-town teenager on vacation in NYC, Finch and Reese get caught in the most dangerous place in the world – between a stressed-out soccer mom and her child. When that soccer mom turns out to be a former agent who's still on the run nearly 20 years after she stole the CIA's most valuable asset, Finch and Reese find surprising new allies.
Crossover - Equalizer & Person of Interest - Rated: T - English - Drama - Chapters: 18 - Words: 73,036 - Reviews: 4 - Favs: 8 - Follows: 3 - Updated: 11/18/2015 - Published: 11/12/2015 - J. Reese, H. Finch, Detective Carter - Complete
I'd Come For You by flashpenguin reviews
Reese and Joss survived Simmons's ambush, and HR is dead and gone. But is it? Quinn's made off with millions, but leftover HR mongrels want it, and will stop at nothing to get it back...even using Quinn's daughter as bait. With danger closing in, Joss is forced to guard her nemesis's offspring. Will Reese and the team be able to save them both? *COMPLETE!*
Crossover - Person of Interest & Blue Bloods - Rated: T - English - Drama/Romance - Chapters: 51 - Words: 91,331 - Reviews: 312 - Favs: 28 - Follows: 56 - Updated: 11/11/2015 - Published: 3/2/2014 - Frank R., A. Baker, J. Reese, Detective Carter - Complete
Leverage VS Person of Interest by Testeal reviews
The' Leverage team' gets a new job to take down a company owned by Harold Fine, But it turns out their job is false. While the POI team tries to save Dr. Corp and find his children
Crossover - Leverage & Person of Interest - Rated: K - English - Drama/Crime - Chapters: 4 - Words: 2,728 - Reviews: 3 - Favs: 2 - Follows: 3 - Updated: 11/11/2015 - Published: 9/12/2015 - Eliot S., Alec H., J. Reese, Machine
The Breach by RoundBrainySpecs reviews
While investigating a mysterious room in the subway tunnels, Reese disappears. The reappearance of an old friend with a new face and his blue box informs Finch of one thing: finding Reese is not going to be easy. Little does he know that finding Reese will be the easy task. Rated T for blood and battle. Never slash.
Crossover - Doctor Who & Person of Interest - Rated: T - English - Adventure/Drama - Chapters: 8 - Words: 7,752 - Reviews: 17 - Favs: 11 - Follows: 28 - Updated: 10/21/2015 - Published: 8/16/2012 - Amelia P./Amy, 11th Doctor, J. Reese, H. Finch
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