He was a nice guy before becoming empowered, ever since he became the dictator of Cuba, he was definitely evil. He killed a lot of innocent people, by starving them to death.
He is in Hell now, so thank god. My grandfather used to live in Cuba before he fleed to the United States in the 1970s because he did not want my mom to grow up in Castro's Cuba.
I the only thing I agree with Greg is you have to decide if Communism was a good thing for Cuba, but I disagree with him whether we can label him as a good or evil. No true leader would kill his own people, that's not just wrong, but immoral, betrayal, and disgusting. I have Cuban ancestors, trust me, he was an evil guy. Only very stupid people think he was good.