content: The '''Night King''' is a fictional character appearing in the HBO high fantasy television series ''Game of Thrones'', based on George R. R. Martin's novel series ''A Song of Ice and Fire''. He is depicted as the leader and the first of the White Walkers, having existed since the age of the First Men, and is the most dangerous and powerful of his race. The Night King is an original creation of the television adaptation, thus far having no counterpart in the novels upon which the show is based.
  The Night King was portrayed by British-American actor Richard Brake in seasons 4 and 5 and then by Slovakian actor and stuntman Vladimir Furdik in seasons 6 to 8.