James Baron was the owner of Baron Enterprises.
Baron graduated from Warwick University with a degree in philosophy. He then studied journalism. He had steady work as a respectable journalist for several years, then began to write more sensationalist pieces. He then quit writing to concentrate on the business side of journalism, founding Baron Enterprises and over time secretly acquiring all the major companies. He also began dealing in illegal arms shipments, preparing for a coup.
The Fourth Doctor and Dr Susan King were assigned to investigate Baron and discovered his plans. King, who had been in a relationship with Baron some years before, was forced to kill him when he threatened to shoot the Doctor. (PROSE: The Baron Wastes)