[Dr Kain]

Hate him? I love the guy and do not hate him one bit. He was insane and fun. He was probably the best Kamen Rider villian until the Sonazaki family in W. Not to mention the music really fit the mood to the point that you could feel his pain at times (like when he starts telling Reiko to hit him and that he had to eat mud), and then you had the scenes when he was like a kid, offering Kanzaki food whether it was from the rations he had or the lizard he had just cooked. The guy was just misplaced in the modern world, and he went bat **** insane from it.