List of Flash enemies

This article list all the known enemies of the Flash.

Golden Age

The Golden Age Flash enemies were all villains of the first Flash, Jay Garrick, later portrayed as living on Earth-Two after the introduction of the Silver Age Flash.
In chronological order :

Villain	First appearance	Description
Shade	Flash Comics #33	A villain who makes use of a special cane that enables him to cast complete darkness at will. Reformed in the 1990s Starman series.
Rag Doll	Flash Comics #36	Peter Merkel was born "triple-jointed", which enabled him to flex farther than any other human being. He hid in a rag doll costume and robbed stores. Has recently died, but has had several children, a few of whom are also Ragdolls, including a daughter who is also a villain, a son that is a member of the Secret Six, and another yet to be revealed son mentioned by his brother. His death in JLA Classified #7 was later undone by the events of Flashpoint, and he has since been a member of the Legion of Zoom to fight against the Flash after the Reverse-Flash took him from the past, before he died in Suicide Squad Annual #1 by ghosts.
Eel	Comic Cavalcade #3	“Eel” Madden was a criminal who had a grease gun, which made it almost impossible for anyone to catch him.
Thinker	All-Flash #12	Clifford DeVoe, a former DA, was a villain who used a specially designed "thinking cap" as an aid in conjuring up and performing various crimes, and a founding member of the Injustice Society of the World, in which position he captured the Flash. He later became friends with the Flash before dying from cancer; however, his Thinking Cap technology had become a computer program that made itself into a villain that battled Wally West and the rest of the JSA. The Thinker AI joined Johnny Sorrow's more modern Injustice Society and Checkmate before the events of Flashpoint. After Flashpoint the Thinker AI was taken out of the past to join the Legion of Zoom. He returned to his own time after the team was overpowered by the Flash Family.
Turtle	All-Flash #21	A villain who used slowness-related weapons against the Flash, was inactive for a long time, then reappeared and now has the power to take away speed from people. After disappearing for a long time after fighting Jay Garrick in the 1940s, the Turtle wanted to set up an empire in Keystone City. He worked with Turtle Man, one of Barry Allen's villains, and his henchmen in an attempt to establish his empire, but Wally West defeated the Turtle's henchmen. The Turtle trapped Wally when he released an ultrasound trap in a warehouse, but when Wally's friends rescued him Turtle detonated the building. Wally and his friends escaped the building in time, but the Turtle was left in the building. Whether he survived or died is unknown. Turtle has since been shown after the events of Flashpoint. In the new timeline, he had a high intellect and graduated from school. Later in his life, he got married and had two children, and spent a lot of time with his family. This led to his scientific advancements being slowed and Turtle growing jealous of more successful scientists. He rushed experiments in an effort to show his intellect again, but was caught in an explosion with the Still Force and had his age accelerated, making him an old man. He later discovered that he could nullify any form of motion, including the progression of life. While he continued to experiment with the Still Force, he became disappointed with life as he knew he would outlive everyone he loved. This caused him to murder his family with his powers, as he saw them as distractions from his scientific work.
Dmane	Flash Comics Miniature Edition	A criminal from the 70th century who is accidentally sent to 1946 by a time travel experiment. The Flash is finally able to send him back just before his execution.
Changeling	Flash Comics #84	Nothing is known of the life of Erik Razar before he became a small-time gangster in Keystone City. In the early 1940s, Razar ran a small mob that was taken over by gangster Topper Hull. Hull framed Razar and had sent him to prison. In the summer of 1947, Razar hatched a plan to escape by sabotaging the prison power generator. His plan had an unforeseen side effect, charging Razar with enormous amounts of electricity and giving him the ability to change into different animals. Razar used his new powers to escape and set out in pursuit of Hull. Disguised as a bird, Razar learns that Hull has planned a bank job by intercepting an armored car delivery. Razar decided to torture Hull by thwarting his crimes and intercepted the car first. By this point, the police had consulted with scientist Jay Garrick who was among those who witnessed Razar, as a large bull elephant, intercept and dismantle the armored car. Quickly changing to the Flash, Garrick engaged the shape-shifting criminal, but was quickly dispatched into a large water reservoir. Razar, now named the Changeling by the local papers, decided to foil Hull's hijack of a sunken ship recovery operation and then kill him. The Flash also became aware of Hull's plans by eavesdropping in his invisible super-speeding form and determined to intercept them both. Razar dove into the water as Hull's boat left the pier and transformed himself into a large shark. The Flash dived in behind the Changeling, but the criminal irritated a large clam which seized the Flash's leg and threatened to drown him. After extricating himself, he came upon the Changeling-shark threatening the divers in the recovery operation and assaulted him. Deciding that he would need to kill the villain to stop him, the Flash battered the shark's gills until it could not breathe and then knocked it unconscious as the Changeling tried to change forms. As the unconscious and unmoving shark drifted to the bottom, the Flash left to capture Hull. Whether or not the Changeling survived has never been determined.
Rose and Thorn	Flash Comics #89	Rose Canton had a alternate personality, Thorn, who was a villain and used thorn-themed weapons. She married Alan Scott, the first Green Lantern, had two children named Jade and Obsidian, and later committed suicide. Her suicide was undone by Flashpoint and she is now depicted as a schoolgirl.
Fiddler	All Flash Comics #32	Isaac Bowin was a villain who used a violin to perform crimes, usually by using the violin to hypnotize people or cause vibrations which could shatter objects after learning skills from a fakir he was in prison with, before murdering him. He first tried to frame his brother, but was defeated and pretended to commit suicide. Fiddler later joined the Secret Six, but when he failed a mission, he was killed by Deadshot on the orders of their leader, Mockingbird. After his death, a woman found his violin and is now using it, calling herself Virtuoso.
Star Sapphire	All-Flash #32	A queen of the Seventh Dimension, she tried to take over the Earth twice but failed. She is now trapped in the Gem.
The Rival	Flash Comics #104	Dr. Edward Clariss, a professor at the university attended by Jay Garrick, believed he had recreated the formula that gave Garrick his speed which he called "Velocity 9". However, this formula was only temporary and he was defeated despite trying to use different fumes to take away the Flash's speed. Later, he escaped from jail, but went into the Speed Force itself. He is now pure energy from the Speed Force. He joined Johnny Sorrow's Injustice Society and committed numerous murders which spelt out his name, but he was defeated by the Flash before he could murder Joan.

Silver Age

The Silver Age Flash enemies all lived on Earth-One and started out as enemies of the second Flash, Barry Allen, as well as the third Flash, Wally West, and the fourth, Bart Allen, after the death of Barry Allen. The Silver Age is when some enemies started to use the name "Rogues". Originally, the Rogues were just a few of the Flash's enemies teaming together, but since then they have formed a lasting team, and usually a Rogue will not commit a crime by himself. The original eight Rogues were Captain Cold, the Mirror Master, Heat Wave, the Weather Wizard, the Trickster, the Pied Piper, the Top, and Captain Boomerang. The current incarnation of the Rogues includes Captain Cold, the Weather Wizard, Heat Wave, the third Mirror Master, and the second Trickster.
In chronological order :

Villain	First appearance	Description
Mazdan	Showcase #4	A criminal from the 38th century, who the authorities decide to exile to the 50th century when Earth is desolate. He is accidentally sent to the 20th century and tries to steal equipment needed to repair his time capsule, such as gold to coat it, and get back to the future to exact revenge, using advanced heat-based weapons. The Flash discovers this and captures Mazdan, who escapes using a contact lens that fires lasers and a "magnetic rod" that focuses heat; the Flash discovers that if Mazdan escapes using his time capsule, it will destroy everything within a radius of at least 10 miles, killing thousands. He uses his super-speed to break through the time barrier with Mazdan, who, oddly enough, does not die from the friction and returns to the 38th century. The authorities say they will make sure next time the time capsule reaches the 50th century and the Flash returns to his own time. Mazdan later escapes to the 20th century again and uses a mind-affecting hallucinatory weapon to cause trouble for the Flash, but is beaten again and returned to prison in the 38th century.
Captain Cold	Showcase #8	Leonard "Len" Snart was a criminal who wanted a chance to get rid of the Flash. Seeing an article about a weapon that might disrupt the Flash's speed, Snart made a gun and exposed it to radiations. However, due to the fact Snart was not experienced in the use of the device and activated it incorrectly, instead of slowing the Flash down, the gun could freeze anything to absolute zero, which he discovered when he accidentally used it on a watchman. Calling himself Captain Cold, Snart started out on a criminal career. He is the leader of the Rogues. Known for being a sympathetic villain, Cold has a sense of honor. Cold has strict rules on how the Rogues should act, such as no drugs and not to kill unless they have to. He also has a sense of loyalty to his team and watches out for them.
Doctor Alchemy	Showcase #14	Albert Desmond suffered from a split personality, one a good person and the other evil. Originally calling himself Mr. Element and using element-themed devices before being captured by the Flash, he changed it to Dr. Alchemy when he found the Philosopher's Stone, which could transmute elements after hearing of it from a cellmate, and was able to transmute elements, although the effects only lasted for about 20 minutes. Soon it was found out that there were two Desmonds, Albert, the good one and Alvin, the bad, and that they shared a mental link. Alvin was destroyed, but Albert became Dr. Alchemy again.
Mirror Master	The Flash #105	While working in a prison workshop, Samuel Scudder accidentally stumbled upon a mirror that could project holograms. When he escaped, he made more mirror gadgets, and became the Mirror Master. He has created many different mirrors that can do various things like travel into other dimensions. He was killed during Crisis on Infinite Earths; however, there have been two others who assumed his identity.
Gorilla Grodd	The Flash #106	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.
Pied Piper	The Flash #106	Hartley Rathaway was born deaf, but was cured after his rich parents sought a way to make him hear. Once he could hear, he became obsessed with music and sound, and made many sound-based weapons. Originally a criminal, he reformed and came out as being gay the same time. He became a friend of Wally West, even when the Top revealed he had changed the personality of some of the Rogues to make them reform; the Pied Piper was able to fight off the Top and stay good.
Weather Wizard	The Flash #110	Mark Mardon escaped from prison to his brother's house. His brother had just made a wand that could control the weather. Mark wanted the weapon and he and his brother got into a fight, and his brother was killed. He had an infant son who was adopted by Iris West, but was later killed by Inertia.
Trickster	The Flash #113	James Montgomery Jesse, a circus performer who came from a family of trapeze artists, invented shoes that used compressed air to "walk" on air, originally using them for tightrope walking. Inspired by Jesse James, James made other weapons and became the Trickster, robbing planes until Flash tracked him down in the circus. He was captured, but became a member of the Rogues. Once reformed, but it was revealed that was because the Top made it so, and he returned to the Rogues, but contemplated whether to be a hero or a villain. He was killed in Countdown to Final Crisis.
Captain Boomerang	The Flash #117	George "Digger" Harkness was a master of boomerangs, which he learned how to use in the Outback. When a mascot was needed for a boomerang company, Harkness was hired, but used the costume and boomerangs to commit crimes and he had many trick boomerangs. Originally, he pretended someone else was using his identity to trick the Flash, but finally the deception was revealed. He briefly became the second Mirror Master after the death of the original. Harkness was killed during Identity Crisis, but also killed Jack Drake before he died. Harkness has a son, Owen Mercer, who became a hero after a brief stint with the Rogues.
Top	The Flash #122	Roscoe Dillon used many top-themed weapons to commit crimes, eventually learning how to spin himself at great speeds, increasing his intelligence and allowing him to deflect bullets. Although he died, Dillon's mind was so powerful that it took over the minds of many people to keep on living, including Henry Allen and a senator, whose body was reformed by Dillon to look like his original body. He was later killed again by Captain Cold when Dillon tried to take over the Rogues during the Rogue War. During this time, it was revealed that Dillon had made some of the Rogues reform, and during the war, he made them criminals again. He was also a victim of the JLA mindwipes; he was made a good person, but overpowered the mindwipe and again became a villain.
Abra Kadabra	The Flash #128	A magician from the 64th century named Citizen Abra who was exiled from his time period and sent to the 20th century for his crimes. He used his technology to pose as a magician. Originally separate from the Rogues, he recently began joining forces with them occasionally.
Professor Zoom the Reverse-Flash	The Flash #139	Eobard Thawne is a speedster from the 25th century, who occasionally used the alias Adrian Zoom. He was a fan of the Flash and gained his powers, but went insane on discovering he would become a villain. Once just a simple villain, he became more well-known when he killed Barry Allen's wife Iris Allen. This action made him Barry Allen's arch-nemesis. Later, when Barry was about to marry Fiona Webb, Thawne tried to kill her but, in a fit of rage, Barry killed him by breaking his neck, thus putting the Flash on trial for murder, where he was found guilty. He was returned to life and was the one behind Flashpoint.
Heat Wave	The Flash #140	Mick Rory is obsessed with heat, and at a young age, burned down his house, killing his family. He then made a heat gun and used fire to rob and kill. Rory was one of the Rogues the Top made reform, and when that was taken away, Rory became a Rogue again. Even during his reformed life, his mind was already starting to turn to crime.
Golden Glider	The Flash #250	Lisa Snart, the younger sister of Len Snart, did not want to be a villain, but when her lover, the Top died, she swore revenge on the Flash. Using sharp ice skates which made ice, she battled the Flash, and got the approval of her brother. She was killed by Chillblaine, a villain whom she gave ice powers to. Captain Cold has since gotten revenge for her death by killing Chillblaine.
Clive Yorkin	The Flash #270	Clive Yorkin, a criminal spending life in prison, agreed to take part in a prison experiment. The experiment went wrong and it drove him mad and able to kill someone by touching them. It was thought he killed Iris West, but he was innocent. The real culprit being Professor Zoom the Reverse-Flash.
Rainbow Raider	The Flash #286	A colorblind painter, Roy G. Bivolo had true talent in composition and detail, but his lack of ability to see color made his work unpopular. His father made a pair of goggles for him that could project colors on a person; each color represented a different emotional mood. Roy became a criminal who stole paintings and joined the Rogues. He was later killed by Blacksmith.