Plenty has been said about Alan Ritchson — not all of it necessarily complimentary — but there is no denying that he has played a key role in shaping the “military action” landscape in the past few years. In Reacher, Ritchson plays Jack Reacher, a former major in the United States Army Military Police Corps. The skills he earned during his days as a serviceman benefit him greatly whenever he faces off against miscreants. The friends he made during his days in the military are also very loyal to him.