Doctor Nefarious
Doctor Nefarious is the antagonist of the Ratchet & Clank franchise. He is an organic lifeform transformed into a robot and archenemy of Captain Qwark, Ratchet and Clank. He first appeared as the main villain of the 2004 game Ratchet & Clank: Up Your Arsenal before returning in 2009's Ratchet & Clank Future: A Crack in Time.