"The Walking Dead" has featured some twisted villains. However, none of them compares to Negan (Jeffrey Dean Morgan). For those that are interested in finding out what exactly makes him so scary, MTV went to the experts to have the character psychoanalyzed and explained.

Brutality is only part of it

When fans of "The Walking Dead" think of Negan, they are instantly reminded of his brutal introduction. Some viewers complained that the gory deaths of Glenn Rhee (Steven Yeun) and Sgt. Abraham Ford (Michael Cudlitz) were too graphic. However, those that have read the comic books know it could have been much worse.

Even though his brutal kills were shocking, it is not the main reason people are scared.

Negan's unpredictability

According to MTV, clinical psychologist Brian Kong says Negan's erratic nature is his most powerful trait. Nobody knows what to expect from Jeffrey Dean Morgan's character. When a "TWD" fan favorite is in a scene with the villain, will they live or will they die? Will they be tortured until they "break," or will Negan force them to do things, like what happened with Dwight (Austin Amelio) and Sherry (Christine Evangelista)? Nobody ever knows what Negan is planning or what he is going to do.

Casual kills makes 'TWD' character terrifying

The mental health expert also explained that Negan is terrifying because of his casual decisions over people's lives.

There is no guilt or remorse. "The Walking Dead" character decides to kill as if it were no big deal. He can also turn suddenly, adding a shock factor to his personality. This is what happened when Spencer Monroe (Austin Nichols) was talking one minute, and "Lucilled" the next.

'The Walking Dead' villain is driven by something bigger

All leaders are driven by something. With Rick Grimes (Andrew Lincoln) on "The Walking Dead," it is survival and finding a safe place to call home. He is motivated by the people he cares about, especially his children. Ezekiel (Khary Payton) wants to shelter survivors from the horrors of the apocalyptic world.

With Negan on "TWD," survival isn't the ultimate goal. To him, it is to win, to rule over everyone, to be a dictator that the world will fear and obey. He also has a desire to accumulate, whether it is supplies, people, or communities.

What do you think of what clinical psychologist Brian Kong had to say about Negan? Do you agree with his assessment of "The Walking Dead" character?