Abdülkadir "Demirkan" Pirhasan (13 May 1919 – 29 August 2016), known by his pen name as Vedat Türkali, was a Turkish screenwriter, novelist, playwright, intellectual, teacher and the member of the Democratic People's Party. He is also credited to "film director" for making three films in Turkish cinema as a director. He was the recipient of numerous accolades, including International Antalya Film Festival — Best Screenplay for Karanlıkta Uyananlar (Those Who Wake in the Darkness) film.