Napoleon (Animal Farm)

Napoleon is a fictional character and the main antagonist of George Orwell's 1945 novella Animal Farm. While he is at first a common farm pig, he exiles Snowball, another pig, who is his rival for power, and then takes advantage of the animals' uprising against their masters to eventually become the tyrannical "President" of Animal Farm, which he turns into a dictatorship, eventually becoming every bit as openly cruel as its original human owner and being perceived as physically indistinguishable from a human at the very end of the story.