Mark Duplass is a 47-year-old from New Orleans, Louisiana, U.S.. We trawled the web to determine that Mark Duplass' height is 5ft 10 ¼ (178.4 cm). This makes him 1.1 inches taller than the average male in the United States. Are you looking for more information about Mark Duplass and his career? We found resources at imdb.com, rottentomatoes.com & ifc.com.