Arrowverse. In the Arrowverse, the Cobalt Stone is a blue crystal connected to the Negative Speed Force. Using the stone, the Negative Force can possess the body of anyone and project blasts of cobalt-97 isotope, also known as cobalt radiation.
Malcolm learned his brother Barry became a forensic scientist and got a job as a janitor in the Central City Police Station where Barry worked. Malcolm started to hate Barry for everything he had that could have been his own if it hadn't been for chance and even witnessed the accident that made him the Flash.
The series made that plain in the season 8 finale, where the post-credits scene unveiled a mysterious blue crystal in a lab in 2049. Obviously, this is the talisman that will give Cobalt Blue his comic book powers.
Is Eddie Thawne Cobalt Blue? Unlike in the comics, Eddie Thawne is Cobalt Blue in the live-action series after The Flash producers changed the character's backstory. Season 9 will feature original cast member Rick Cosnett reprising his role as Central City Police Department detective Eddie for one last ride.
After the events of Zero Hour: Crisis in Time!, it is revealed that Malcolm Thawne is his ancestor and Barry's long-lost twin brother, meaning that Barry is Thawne's great-uncle.
The Flash: Rebirth
Bart and Jay were then attacked by Zoom, who especially hated Bart because he was both a Thawne and an Allen.
Grodd was an inhabitant of Gorilla City, a peaceful society of super-intelligent gorillas of which Grodd was the only evil one. A mastermind in his early years with vast mental powers, he has become more savage and stronger recently, to the point where he wants to "feast on the bones" of the Flash.
Thawne survives his erasure following Eddie's sacrifice due to his connection to the Negative Speed Force, which renders him immune to timeline changes. He allies with Dark Arrow and Overgirl of the Nazi-dominated Earth-X to invade Earth-1.
Reverse-Flash was revealed to be Eobard Thawne, Eddie's descendant from the future.
Eobard Thawne hates Barry Allen in 'The Flash' because the superhero himself upstaged him in the biggest moment of his life. Thawne idolized Barry Allen of the 21st century and wanted to become just like him, and he did it by experimenting with Speed Force and managing to be as fast as the Flash.
Dr. Jason "Jay" Garrick is a veteran speedster from Earth-3 and a vigilante known as the Flash, stylized as the Crimson Comet. Jay was found by Hunter Zolomon/Zoom, an evil meta-human speedster from Earth-2, and held as a prisoner in Hunter's lair on Earth-2, forced to wear an iron mask that dampened his powers.
Ryan Wilder, also known as the Red Death, is a major antagonist in the 2014 TV series The Flash, serving as a mentioned antagonist in Seasons 5 and 8 and one of the two main antagonists (alongside Cobalt Blue) of Season 9.
Eobard Thawne aka Professor Zoom hates Barry Allen aka The Flash because Thawne idolised Flash growing up but after gaining his own speed and traveling back in time to meet him, he found out he wasn't going to become the Flash of the 25th century but instead the infamous Reverse-Flash, Professor Zoom.
While Barry did still hate Eobard for everything he did, Barry eventually chose to forgive him, not wanting to hate him anymore.
The Dark Flash is an evil variant of Barry Allen from 2013.
After his continuous defeat at the hands of General Zod and his fellow Kryptonians. Dark Flash becomes the main villain of The Flash movie.
Wally West is the Fastest Flash and is arguably the fastest being that has ever existed, as said by Max Mercury—and it has been remarked that Wally and Barry are the only two speedsters that were fast enough to even outrun death itself.
Flash fans may be rightfully wondering how Thawne can still be alive in the future after we've seen him die on more than one occasion. The short answer is because time travel.
Malcolm Thawne is the lost twin brother of Barry Allen. He is a Cobalt Blue, one of a number of evil counterparts of the Flash that wields the Blue Flame.
The Black Flash is a fictional comic book character from DC Comics. Created by writers Grant Morrison and Mark Millar, and artist Ron Wagner, the character had cameos in The Flash vol. 2 #138 (June 1998), before appearing in full in The Flash vol. 2 #141 (September 1998).
Becoming a speedster
When the particle accelerator exploded, Barry was killed while Eddie was struck by lightning, gaining the power of superspeed. Afterwards, Eddie became a criminal under the alias "Johnny Quick". His first act was to murder 10% of Central City's inhabitants.
Avert your eyes now if you have yet to see tonight's epic episode of The Flash, "Tricksters!" MORE: The Flash boss drops major scoop on Eobard Thawne! Nope, the man wearing the yellow mask on that fateful night 15 years ago was actually Scandal's big bad and The Carrie Diaries sweet dad Matt Letscher!
However, Thawne would eventually be destroyed by his nemesis in battle, with his entire body being disintegrated by his own negative energies. Sometime later, Eobard's ancestor Eddie was resurrected, and with a connection to the Negative Speed Force.
During an outing with Kid Flash, a brief history lesson revealed that Wally West is terrified of Gotham City.
Doctor Strange is a Master of the Mystic Arts who wields a number of powerful spells and artifacts, making him a dangerous threat. Beating the Flash as simple as Doctor Strange moving the battlefield to another dimension or changing into one of his more powerful forms.
Crisis on Infinite Earths
Allen escapes and foils the Anti-Monitor's plan to destroy the Earth with an anti-matter cannon, creating a speed vortex to draw the power in, but dies in the process as the power becomes too much for his body.