History Characters / PersonOfInterestTeamMachine

* SmallRoleBigImpact: His misadventure inadvertently puts Reese on Finch's radar. Also it explains how Finch's virus fell into Chinese hands, forcing the CIA to send Reese and Stanton to chase after it (and preventing Reese from returning to Jessica and potentially keeping her from being killed by her husband).

* CoolGuns: She has four. Her primary handgun is a Heckler and Koch USP Compact equipped with a laser sight. For backup weapons she uses a suppressed Smith and Wesson Bodyguard 380, a suppressed Sig-Sauer [=P239=] and an unsuppressed Beretta Nano. Halfway through Season 3, she loans Root the USP Compact and uses her Nano as her main sidearm till the finale when Root returns the Heckler and Koch to her. Season 4 has her settling on the USP Compact as her primary sidearm. With Samaritan having presumably disposed of the USP compact, in Season 5, she's utilizing SIG-Sauer P226 handguns as her current sidearm.

* CoolGun: Root's original weapon is the unique Heizer Defense Double Tap, an easy concealable handgun with a two round capacity. She's an extremely good shot with it and when she gets admin access, in "God Mode," gains ImprobableAimingSkills. As of Season 3, she's no longer using it due to Harold briefly consigning her to a mental asylum and presumably confiscating it. Once released she has switched to a variety of handguns and for the second half of Season 3 uses Shaw's Heckler and Koch USP Compact.

* CoolGuns: He uses a Beretta 92FS as his sidearm.

* HurtingHero: He lost his way in life as a result of Jessica's death. Even after setting out on his path of atonement, the pain is still there, and is very evident whenever he is at risk of losing another close friend. This gets taken to the next level after Carter is killed in "The Crossing". Reese is genuinely dying from his injuries yet continues to hunt down her killer in the following episode "The Devil's Share".

* HurtingHero: Let us count the ways. His best friend was killed; he's on the run from his own government for creating a machine to protect its people; had to fake his own death because his own government would kill him or anyone connected with him to keep the Machine safe, meaning that Finch had to leave behind and never again be with his fiancée or she would become a target; and he's quite literally hurting due to getting caught in an explosion set to kill Nathan that left him crippled and in constant pain. And this is before we learn that under his real name, he's wanted for sedition, and will likely be going to jail for a very long time if he's ever caught.

[[caption-width-right:350:''"[[AC:Can. You. Hear. Me.]]"'']]

* WellIntentionedExtremist: Averted, doubly subverted, and possibly played straight (if some of the hints about his past prove to be true). Says that his greatest motivation (even above not wanting others to use it for nefarious purposes) for sealing up The Machine so no one can access it is that he might be tempted to use it to become one of these however, before he decided to help people, he was so concerned with not using The Machine to become a WellIntentionedExtremist (either he or anyone else) he became an version of this by deciding that TheNeedsOfTheMany outweighed the needs of the Irrelevants ForTheGreaterGood.