Alan Alda
Alan Alda starred in M.A.S.H., a show following shenanigans of military men living on a base, but he had some real-life experience. He was in the ROTC program in college at Fordham University, receiving a degree in English. Following graduation, for six months real-life Alan Alda served in Korea as a gunnery officer. His character on the television show played a medic in the Korean War.