Richard Mnch did not portray Oberkommando der Wehrmacht the German general who served during WWII in the 1970 movie Patton.
Richard Heinrich Ludwig Mnch (10 January 1916  6 June 1987), better known as Richard Mnch, was a German actor, best known for portraying Alfred Jodl in "Patton" (1970). 
Alfred Josef Ferdinand Jodl ( ; 10 May 1890  16 October 1946) was a German general and war criminal during World War II, who served as the Chief of the Operations Staff of the Armed Forces High Command (Oberkommando der Wehrmacht). 
