Support WBURHow Math Determines The 'Game Of Thrones' ProtagonistPlay03:57Download AudioNPR StaffJames DoubekApril 16, 2016 ShareKit Harrington plays Jon Snow, who researchers found is one of the most important characters in Game of Thrones. (Courtesy of HBO)
Kit Harrington plays Jon Snow, who researchers found is one of the most important characters in Game of Thrones. (Courtesy of HBO)