The Reverse-Flash is a name used by several supervillains appearing in American comic books published by DC Comics. Each iteration of the character serves as a foil and an enemy of the Flash.
Reverse-Flash / Lia Nelson in Tangent Comics
A supervillain or supercriminal is a variant of the villainous stock character. It is sometimes found in comic books, and may possess superhuman abilities. A supervillain is the antithesis of a superhero.
Supervillains of the United Underworld from the 1966 film Batman, a film adaptation of the comic books based on Batman and the 1960s television show of the same name. From left to right: Penguin, Riddler, Catwoman, and Joker.