The Deathless Devil (Yılmayan Şeytan)

The Deathless Devil is a 1972 Turkish action film produced, co-written and directed by Yılmaz Atadeniz. Like many Yeşilçam productions of its era, it reworks foreign source material, in this case the 1940 American serial Mysterious Doctor Satan.

The story follows a young man who inherits his late father's secret identity and, as the masked crimefighter Copperhead, sets out to stop the schemes of the villainous Dr. Satan, plunging into a string of dangerous adventures along the way. Kunt Tulgar leads the cast, with familiar Yeşilçam faces Erol Günaydın, Erol Taş and Muzaffer Tema in supporting roles. The film opened nationwide in Turkey on October 1, 1972, and found an international cult audience when Mondo Macabro released it on DVD in the United States in 2005, paired with Tarkan Versus the Vikings.