Leonard Nimoy | US Army Reserves (1953-1955). He received his final discharge in Nov 1955 with the rank of Sergeant. According to the National Archives, Nimoy's Army personnel file was destroyed in 1973 during a major fire at the National Personnel Records Center in St. Louis, Missouri... and as a result, there's not much public information about his service.
Robert Cummings - in November 1942, Cummings joined the US Army Air Corps. During World War II, he served as a flight instructor. After the war, Cummings served as a pilot in the US Air Force Reserve, where he achieved the rank of Captain.
Michele S. Jones was the first woman in the United States Army Reserve to reach the position of command sergeant major of the U.S. Army Reserve. She was the first female non-commissioned officer to serve in the highest enlisted position of a component of the U.S. Army, active or reserve, and was at one time the highest-ranking African-American female enlisted person in any branch of the United States military, as well as the highest-ranking enlisted African American in the Army Reserve.
Actor Russell Johnson, best known as "The Professor" on Gilligan's Island, served in the US Army Air Force during WWII. He flew 44 combat missions as a bombardier in B-25 bombers. In March 1945, he and two other B-25s were shot down in the Philippines. He broke both his ankles and the radioman next to him was killed. Johnson earned a Purple Heart, among other honors. He was honorably discharged and later served in the Army Reserve. He used his GI Bill to fund his acting lessons.
Ronald Reagan-United States Army Reserve, United States Army Air Corps Captain Stateside service during World War II (1942–1945); Army Reserve (1937–1942) See also: List of United States Presidents by military rank and Ronald Reagan for more information on military service.