Captain Qwark
Captain Qwark is a main character of the Ratchet & Clank franchise. He is an intergalactic superhero who becomes an enemy to Ratchet and Clank in both Ratchet & Clank and Ratchet & Clank: Going Commando. He reformed in Ratchet & Clank: Up Your Arsenal and became a cowardly hero since then.