Hans Christian Andersen

Hans Christian Andersen was a human writer. The First Doctor gave him the idea for one of his stories, The Emperor's New Clothes. (DW: The Romans)

Behind the scenes
According to The Brilliant Book 2012, a non-canonical REF book; in an alternate universe where all of history happened at once, Andersen was available on social-networking sites and was friends with Charles Dickens. (REF: The Brilliant Book 2012)