"This ship is now the ultimate power in the universe. I suggest we don't screw it up"
Ruggle had a severe hairlip, and had to fight all kinds of discrimination from those who thought he couldn't really be that smart. He had a bout with depression when he was an aimless teenager, but was rehabilitated by Jabba the Hutt and his doctors. He then went to the Prefsbelt IV Naval Academy and the Prefsbelt Psychiatric Academy simultaneously, the only person to ever graduate from both places at the same time. After being laughed at by a young Conan Motti, Ruggle left the Republic Navy, and went back to find work for the Intergalactic Banking Clan. When the Muunilists realized he had no finance background, they sent him to Dac (Mon Calamari), to help design new ships. There, the Quarren Isolation League made him the Chief Engineering Officer of their secret project to produce the Subjugator Heavy Cruisers.
During the Clone Wars, these ships were employed by the CIS, and the Malevolence was the flagship. When General Grievous was given command, Ruggle was incensed. He knew that Grievous was a coward and would abandon ship at the first sign of trouble. He was right. Ruggle was killed when Anakin Skywalker blew up the ship. Grievous got away, surviving so that he could live to flee another battle in the future.