5. GENERAL GRIEVOUS

General Grievous is a dangerous walking weapon with a creepy asthmatic cough reminding us of his organic nature inside the cyborg shell. Part human and part machine, Grievous can use his body as a weapon, striking devastating blows, but this is not his only skill. He is dangerous because he is ruthless and driven by the need of power. Not mentioning he masters the art of lightsaber. 

His mentor was Dooku, but he doesn’t admit that he is a servant of Darth Tyranus’ interests. In Clone Wars, he is the Kaleesh cyborg Supreme Commander. Revenge of the Sith presents the cybernetic General as the second main antagonist.

” I’m no errand boy, and I’m not in this war for Dooku’s politics. I am the leader of the most powerfull droid army the galaxy has ever seen!”
―Grievous to Obi Wan Kenobi