History Characters / ArrowverseSpeedForceAndForcesOfNature

* BigBad: Of Season 9's "A New World" four-parter arc, the final arc of the final season. While it does later delve into a BigBadDuumvirate with Eddie Thawne/Cobalt Blue, the Negative Speed Force is the true mastermind that orchestrated everything. The conflict starts and ends with the Negative Speed Force, and once its sentient form is gone, Eddie is no longer a threat.

* AdaptationalSapience: The Negative Speed Force of the comics never displayed sentience and the ability to talk.
* AdaptationalVillainy: Going hand-in-hand with AdaptationalSapience, while the comics Negative Speed Force did enable Thawne to commit his atrocities, there wasn't any indication that itself was actively evil. This version is shown to be sentient and is every bit as evil as Thawne is, while its greater power allows it to be far more destructive.

* LoveIsAWeakness: It doesn't ''outright'' state it believes this, but considering it keeps turning a blind eye whenever evil speedsters kill Barry's loved ones and generally NoSympathy to Barry's grief you have to wonder...

* TheAgeless

* CharacterisationMarchesOn: The Cobalt-97 crystal version of the Negative Speed Force is vastly different from when it was just an energy source that Thawne tapped into, where it seemed like just a mindless force of nature. In its Cobalt-97 form, the Negative Speed Force is sentient, vengeful, and sadistic, being a ManipulativeBastard willing to do anything and everything to kill Barry Allen. These two very different depictions of the Negative Speed Force are even given different colors, with the old Negative Speed Force being red, while Cobalt-97 and its energy is blue.

* ArcVillain: Of Season 9's "A New World" four-parter arc, the final arc of the final season.
* BigBadDuumvirate: This sentient version of the Negative Speed Force along with a revived and corrupted Eddie Thawne act as the final antagonists for the final arc of the final season.

* EvilCounterpart: To the Speed Force, especially to match the Speed Force's physical form called "Nora". While the Speed Force / Nora created a body of her own and chooses Nora as AFormYouAreComfortableWith, the Negative Speed Force does not have a physical form and instead must rely on possessing the bodies of others in order to interact with and influence the Earth. There's also there's goals, with the Speed Force binding the current timeline together and preventing any alternate timelines that deviate too far, while the Negative Speed Force is happy to erase the whole timeline from existence and kill everyone in it.

* TheCorrupter: It is able to use various hosts to corrupt the people they are close too. Its grandplan is to corrupt Eddie by tempting him with the life he lost and his despair over losing Iris, to turn him into the new Negative Speed Force avatar.

!!! '''Species''': Interdimensional sentient Force

!!! '''Species:''' Extra-dimensional energy source

* EvilCounterpart: To the Speed Force, especially to match the Speed Force's physical form called "Nora". While the Speed Force / Nora created a body of her own and chooses Nora as AFormYouAreComfortableWith, the Negative Speed Force does not have a physical form and instead must rely on possessing the bodies to exert its influence on the Earth.

* KilledOffForReal: Not the Negative Speed Force (since it can't really be killed, only de-fanged), but rather the crystal holding its sentience. Eddie ends up pulling a HazyFeelTurn after being swayed by Barry's words and shatters the crystal, essentially making the N.S.F. a non-threat while remaining its avatar.

* DiscOneFinalBoss: While it is the mastermind of the final arc of Season 9, it [[spoiler:is ultimately overtaken by Eddie Thawne / Cobalt Blue as the main villain.]]

* MythologyGag: He is revived in the final arc and is known as "Malcolm Gilmore" (until he regains his memories as Eddie Thawne). This, in addition to the Negative Speed Force comes to him in the form of a blue crystal for him to use, is a reference to how he was known as Malcolm Thawne in the comics, who was also known as the villainous speedster Cobalt Blue.

* {{Sadist}}: Describes in great detail what it intends to do to Barry and his friends, including "gutting [Iris] like a fish and [her] little baby too". It also laughs when telling Khione that the only way to stop it is to kill Mark, due to inhabiting his body.

* EnergyAbsorption: He is able to steal the speed of other speedsters, which he uses to take power from Reverse Flash, Zoom, Savitar and Godspeed in the final battle.

It later returns inhabiting a strange blue crystal known as Cobalt-97, where it displays sentience and a vendetta against Barry.

A crystal housing the Negative Speed Force's sentience, which is able to possess people to use as hosts.

* OlderHeroVsYoungerVillain: A variation. The first Speed Force is an omnipresent part of history, having been around since before and after the existence of the universe. The Negative Speed Force, relatively speaking, is a newer creation of Thawne's. Later subverted, when it turns out that Thawne never created the Negative Speed Force, as he assumed, but merely tapped it.

* DespairEventHorizon: He passes it in the second-to-last episode of Season 9, after learning that his HeroicSacrifice was in vain, and that Iris, the woman he loved, had moved on and made a life with Barry. This, and seeing the life he could have had with her, leaves him screaming in rage and despair...and leaves him open to the corrupting of the Negative Speed Force.

!! Edward "Eddie" Thawne / "Dr. Malcolm Gillmore" / Cobalt Blue

Initially, a man living in 2049 with the name of Dr. Malcolm Gillmore, who for mysterious reasons had an uncanny resemblance to Eddie Thawne. After one fateful night, he discovers he is actually Eddie Thawne himself, BackFromTheDead, having been resurrected by the Negative Speed Force.

!!! '''First Appearance:''' "[[Recap/TheFlash2014S8E20NegativePartTwo Negative, Part Two]]" (''The Flash'' 8x20, as a crystal)

[[folder:Cobalt-97]]

* MythologyGag: He is revived in the final arc and is known as "Malcolm Gilmore" (until he regains his memories as Eddie Thawne. This, in addition to the Negative Speed Force comes to him in the form of a blue crystal for him to use, is a reference to how he was known as Malcolm Thawne in the comics, who was also known as the villainous speedster Cobalt Blue.

[[folder:"Nora" / Speed Force's Physical Form]]

!!!Speed Force Enforcers

!!!Negative Speed Force Avatars