Dukat definitely personifies evil, and worse yet, until closer to the end he feels he is misunderstood, that he did what he had to do. But he was a master manipulator.
A lot of the complexity behind Dukat is probably thanks to a masterful performance by Marc Alaimo. Almost like a Hitchcock movie, Alaimo makes you at times want to believe him, that he really regrets his actions during the Bajoran Occupation, and that he's a changed man. But it's just a false facade, but especially during the Klingon-Cardassian War you almost think Dukat has turned a corner. But then he betrays the entire quadrant to the Dominion because he truly is just an evil power hungry man.
And even then there are times, thanks to Alaimo, that you almost....almost believe he might just be misunderstood. He shows a rare moment of honesty when he admits to Major Kira he did take a huge risk in joining the Dominion, one that came at a high cost, and he said he did it because Cardassia was weakened by the war (though in retrospect we can probably say he really did it because he wanted to be the Cardassian ruler and have statues build in his honor--and he was less motivated by trying to make Cardassia a true power except in how it made him a more powerful ruler).
Before the death of Ziyal he was already dangerously evil. He just had a charm about him that added some dimension to the character, again thanks in large part to Alaimo. After Ziyal's death he was just as evil, he just gained a dangerous ally with the Pah Wraiths who helped him carry out his plans in ways he couldn't dream of before. He continued to try to manipulate people by trying to say they weren't really evil, just mischaracterized. But then eventually he gave up even that pretense and embraced the evil that he was.
A lot of the complexity behind Dukat is probably thanks to a masterful performance by Marc Alaimo. Almost like a Hitchcock movie, Alaimo makes you at times want to believe him, that he really regrets his actions during the Bajoran Occupation, and that he's a changed man. But it's just a false facade, but especially during the Klingon-Cardassian War you almost think Dukat has turned a corner. But then he betrays the entire quadrant to the Dominion because he truly is just an evil power hungry man.
And even then there are times, thanks to Alaimo, that you almost....almost believe he might just be misunderstood. He shows a rare moment of honesty when he admits to Major Kira he did take a huge risk in joining the Dominion, one that came at a high cost, and he said he did it because Cardassia was weakened by the war (though in retrospect we can probably say he really did it because he wanted to be the Cardassian ruler and have statues build in his honor--and he was less motivated by trying to make Cardassia a true power except in how it made him a more powerful ruler).
Before the death of Ziyal he was already dangerously evil. He just had a charm about him that added some dimension to the character, again thanks in large part to Alaimo. After Ziyal's death he was just as evil, he just gained a dangerous ally with the Pah Wraiths who helped him carry out his plans in ways he couldn't dream of before. He continued to try to manipulate people by trying to say they weren't really evil, just mischaracterized. But then eventually he gave up even that pretense and embraced the evil that he was.