Enlisting in the early 50's, Leonard Nimoy spent a total of 18 months in the U.S. Army reserves. Part of his service was to put on entertaining shows for the Army Special Services. When his time was up, he successful earned the rank of Sergeant and went on to become one of the biggest icons of TV, Spock.
The King of Rock n' Roll, Elvis Presley, did not simply spend his entire adult life as an extremely famous singer. In fact, he was drafted into the U.S. Army in 1958 whilst he was on his way to fame and stardom, continuing to make music. While stationed in Germany, he met the love of his life, Priscilla.
Bea Arthur, the actress that we know so well from the hit TV show, The Golden Girls, just so happened to enlist in the U.S. Marines when she was 21 years old. Her work consisted of being a typist and a truck driver, and she managed to work her way up from private to staff sergeant.