Enemies of the Flash

The Rogues represent a group of enemies of the comic book superhero the Flash, currently led by Captain Cold including Mirror Master, Heat Wave, Weather Wizard, the Trickster, Pied Piper, the Top, and Captain Boomerang. This loose criminal association refer themselves as the Rogues, disdaining the use of the term "super villain" or "super-criminal".

The Rogues, compared to similar collections of supervillains in the DC Universe, are an unusually social group, maintaining a code of conduct as well as high standards for acceptance. No Rogue may inherit another Rogue's identity (a "legacy" villain, for example) while the original still lives. Also, simply acquiring a former Rogue's costume, gear, or abilities is not sufficient to become a Rogue, even if the previous member is already dead. They don't kill anybody unless it's necessary. Additionally, the Rogues refrain from drug usage.

Although they tend to lack the wider name recognition of the villains who oppose Batman and Superman, the enemies of the Flash form a distinctive rogues gallery through their unique blend of colorful costumes, diverse powers, and unusual abilities. They lack any one defining element or theme between them, and have no significant ambitions in their criminal enterprises beyond relatively petty robberies.

The enemies of the Flash started to use the name Rogues during the Silver Age of comics. Originally, the Rogues were just the Flash's enemies teaming together after they were all broken out of jail by another Flash foe, the super-intelligent Gorilla Grodd, to distract the Flash during Grodd's attempt at world conquest. After their defeat by the Flash, they formed a lasting group, and usually a Rogue will never commit a crime by himself. The Silver Age Flash enemies who became Rogues were Captain Cold, Mirror Master, Heat Wave, Weather Wizard, the Trickster, Pied Piper, the Top, Captain Boomerang and later, Rainbow Raider. These villains battled the second Flash (Barry Allen), and the third and fourth Flashes after Allen's death.

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Wikipedia