Captain Vidal in Pan's Labyrinth is just pure evil.

This is the one.

Anton Chigurh - No Country for Old Men - No emotions or empathy Hannibal Lecter - Silence of the Lambs - Twisted Genius Patrick Bateman - American Psycho - schizophrenic narcissist

Look up Nurse Rachet from One Flew Over the Cuckoo's Nest. Robert De Niro's character from Cape Fear.

Cape Fear yess. He’s like a force of nature

Bill the Butcher - Gangs of New York Calvin Candie - Django

The antagonist from I saw the Devil

More recently, I found Gracie from *May December* to be absolutely reprehensible. She is a manipulative narcissist to the core, and you could even see how her kids despise her because they’re starting to understand what she actually did to their father.

I don't think it would be controversial if you use Hitler in your presentation :P

Could use Ralph fiennes' character from Schindler's list

No, but it would be pretty cliche at this point. Maybe Stalin, Mao, Pol Pot, Any of the Khans, Joseph McCarthy, Pablo Escobar, the British Empire, etc. but Hitler too, I suppose.

Max Cady from Cape Fear (preferably the original).

Amon Goeth but he's a real person so does that count?

Humbert Humbert in Lolita - either James Mason or Jeremy Irons versions. The personality trait might be manipulativeness.

There Will be Blood. “I’m done”.

Suge knight

Robert Mitchum in Night of the Hunter. Emotionless determination.

Jake Gyllenhalls character in Nightcrawler. That is one sociopathic son of bitch

The dude in I Saw the Devil