Marcus Welby M.D. (1969-1976) ~ ABC Robert Young James Brolin ~ It concerned a professional conflict between well-meaning physicians. Dr. Welby's unorthodox way of treating patients was pitted against the more strait-laced methods of Dr. Steven Kiley. Welby had served in the US Navy as a doctor during the war, and was a widower. He owned a sail boat and enjoyed the ocean. The doctors worked alongside each other in their private practice in Santa Monica.