Kevin Thompson was a man who was experimented on by his parents since his childhood in order to treat a neurodegenerative disease, but the treatment ended up giving him the new ability to control people's minds at his will. Assuming the name Kilgrave, he began to use his powers for personal gain and developed a cruel nature, eventually coming across Jessica Jones whom he kept as his personal sex slave for torturous several months.
Kilgrave lacked any form of moral compass or conscience, if someone annoyed him, he would frequently go out of his way to order them to do something vicious to themselves, before he met Jones, Kilgrave was used to getting everything he wanted, however, when Jones escaped his thrall Kilgrave became obsessed with Jones.
When forced to see the experiments that created him, Kilgrave showed genuine sadness and discomfort covering his ears and assuming the fetal position in order to hide from the video being shown. Kilgrave disliked children, believing they should be "seen and not heard, or better still not seen and not heard". At one point, he went so far as to say Jones didn't love him because she was incapable of loving another person, not even considering the possibility that it was because he turned her into his personal mind-slave. Ultimately, Kilgrave's personality was little more than that of a sociopath.
Powers and Stats
Name: Kevin Thompson, Kilgrave
Origin: Marvel Cinematic Universe
Powers and Abilities: Mind Control
Attack Potency: Average Human Level
Speed: Normal Human
Lifting Strength: Regular Human
Striking Strength: Class H
Durability: Average Human Level
Standard Equipment: None notable
Intelligence: High (Seems to be somewhat comparable to Jessica, as he was able to constantly escape from her in the latest episodes)
Weaknesses: Human weaknesses, Can only control people who "share the same air with him", His power is virus-based, and can't control those who are immune to viruses, His power can only reach up to 100 Feet and only lasts 12 hours, but it was later enhanced to last longer and reach further.