I haven’t read it but the blurb seemed interesting.

O’Brein from 1984 comes to mind. He purposely puts Winston Smith further down the path of resistamce by giving him illegal, anti-authoritarian literature, wins his trust, then betrays and tortures him. Then, only when Winston’s spirit is broken and fully remolded into the most perfectly obedient, Big Brother-loving citizen, he grants Winston the mercy of death.

An absolute piece of shit, but a great and complex villian as well.