Viktor

 Viktor is proof how pursuing science can lead to unfortunate ends. However, his current life was caused due to lack of recognition and inventions being stolen. After that incident, he decided to shed himself of his organic part and become full machine. He's a reverse Pinocchio of sorts, rather than become more human, he became more machine. A bit tragic, but still very threatening.

His design combines a sleek look not usually seen in scientists, plus different obvious augmentations to his body through 'hextech'. For added strangeness, he has a third, mechanical arm sticking out of his back that fires out a laser beam from its palm. Truly, Viktor is a sight to behold.