A hyper-intelligent telepathic ape, Gorilla Grodd has sought to rule both the simian and human worlds, though the Flash has frequently thwarted his plans.
Leader of the Rogues and one of the Flash's oldest enemies, Leonard Snart may be a criminal, but he's not without honor.
In the annals of villainy, there are few bad guys as likable as Captain Cold. Seeing himself as a blue-collar, working man’s super-villain, Cold has a code of honor, one that prevents him from killing innocent people...though he’s more than happy to rob them blind.
A genius scientist whose bald head houses an assortment of protruding machines, the Thinker has made it his life's work to push his scientific experiments to the limit, despite the potential effect on humankind. Devoted to his cause and viewing ethics as unnecessary limitations on progress, there's no denying that the Thinker's intelligence is without rival. However, so is his ego.
A ruthless and conniving businessman, Simon Stagg of Stagg Enterprises has never let petty morality or empathy get in the way of closing a profitable deal.