    Sentence’ ‘1: WHat actor played’ -the:-  Valeyard? os :    Sentence 2: Notably,in: 2013,"John. Hurt  ruest-starred a5: a hitherto, ‘unknown .  jncarnation of the Doctor known as the War.  Doctor iri.the*run-Up, to the show's 50th  anniversary special “The Day. of the  “Doctor. ; : _    