David Vogt (pronounced [ˈdaːvɪt ˈfoːkt]; best known by his stage name, Charles Greywolf; born 5 September 1975) is a German musician, record producer, mixer and recording engineer.
Vogt is best known as the guitarist in the power metal band Powerwolf.
He runs a recording studio in Berus, called "Studio Greywolf".
He's married to Helen Vogt, vocalist of Lighthouse in Darkness and formerly from Flowing Tears.