Benjamin Buss (pronounced [ˈbɛnjaˌmiːn bʊs]; born 7 October 1977),[1] best known by his stage name Matthew Greywolf, is a German musician, best known as the lead guitarist and a main songwriter in the power metal band Powerwolf.

[5] In 1994, along with other people he started a band Flowing Tears & Withered Flowers.

[9][4] He also designed the stage setup, merchandise, artwork and layout for most of their albums.

[10] When asked if he was a Christian or a Satanist, Matthew Greywolf answered: "I am a metalist, a metal fan.

[4] He claims that his main musical influences are Iron Maiden, Black Sabbath, Scorpions, Michael Schenker Group, Mercyful Fate, Paradise Lost, Tiamat, New Model Army, Dead Can Dance and countless others.