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The Deathless Devil is a 1972 Turkish action film, co-written, produced and directed by Yılmaz Atadeniz, starring Kunt Tulgar as a young man who takes up his father's mantle as masked crimefighter Copperhead to defeat the evil Dr. Satan. The film, which went on nationwide general release on October 1, 1972 , was released in the US by Mondo Macabro in 2005 on a double-bill DVD with Tarkan Versus the Vikings. The film is a remake of the 1940 serial Mysterious Doctor Satan.