Also known as: Blasphemer
Born on: 13.01.1975

Rune Eriksen (born in January 13, 1974) is a Norwegian musician. He is best known as the former guitarist in the black metal band Mayhem under the stage name Blasphemer which he took from a Sodom song. He joined the band in 1995, but parted ways in late 2008.He also plays in various other Norwegian bands: In Silence, Aura Noir, Mezzerschmitt, 1349 and the Portuguese band Ava Inferi. He resides in Portugal.