What actor attained the highest military rank?

James Stewart held the rank of Brigadier General in the US Air Force Reserve. However, it could be argued that Ronald Reagan would be your answer. He didn't achieve the highest rank in the military per se, but he did become Commander In Chief of the Armed Forces when he became President of the United States.
James Stewart held the rank of Brigadier General in the US Air Force Reserve. However, it could be argued that Ronald Reagan would be your answer. He didn't achieve the highest rank in the military per se, but he did become Commander In Chief of the Armed Forces when he became President of the United States.