An evil Power Ranger is a Ranger who is either brainwashed into becoming evil, created as evil, lied to, blackmailed or is corrupt. Evil Rangers are either tools of villains or are villains in their own right. Most evil Rangers are evil duplicates of the Power Rangers. Their suits are identical to that of their Ranger counterparts, but sometimes these suits are somewhat modified (to some extent). Some evil Rangers, however, wear their own suits to completely differentiate themselves from their Ranger counterparts and wield powers and abilities not possessed by either the Rangers or their evil duplicates. Evil Rangers, monsters, and/or enemy grunts can also disguise themselves as Rangers. So far, the A-Squad of Power Rangers S.P.D. are the only truly corrupt team of Rangers in the Power Rangers franchise (instead of being brainwashed into evil, such as Tommy, or being created as evil, such as the Psycho Rangers).