Ted Arvid Skjellum, also known by the stage name Nocturno Culto, is a Norwegian musician best known as the vocalist, lead guitarist, and partial bassist of the influential black metal band Darkthrone. He has been with the band since 1988. He is also the vocalist of the band Sarke, and has a solo project called Gift of Gods. He currently works in Norway as a school teacher, and has a son and a daughter. He has also released a documentary film called The Misanthrope in which he deals with black metal music and life in Norway.