Sadists

Sadists are people who feel the joy of seeing their victims suffering, either physically or mentally. This kind of cruelty is also known as "Schadenfreude" (This means "we can find joy in seeing the misfortune of others". Schaden = "injury"; Freude = "Joy"), though that term generally refers to cases where the sadist derives pleasure from pain inflicted by something other than themselves.

These villains can be Delusional, for example, if they convince themselves that their enemies must suffer and take enjoyment in doing so.

(This is ongoing.)