3. Killgrave (Jessica Jones)

There is evil an then there is sick and twisted evil and David Tennant’s Killgrave is certainly one of the most twisted villains in the entire Marvel Cinematic Universe. From his very first entrance in Jessica Jones, taking over the poor family’s apartment, forcing the kids to shut themselves in the cupboard while they urinated themselves, this was someone who no redeeming features. From the callous way in which he told the vendor to throw the hot cup of coffee into his own face to the offhand manner in which he told Wendy to attack Jeri with a thousand cuts, these moments defined him as cruel, cold and altogether vicious.
Added to this is his fascinating backstory as a boy subjected to horrific experimentation by his parents, unleashing his ability to control others. This reveal could have easily been a moment that brought him towards the light; instead he forced his mother to kill herself without hesitation and used his dad to strengthen his abilities when they were finally reunited. He might not be someone hellbent on world domination or destruction but as the survivors group proved, his harm was deeply personal and deeply devastating.
