Willy is the bassist for the Scottish hair metal band Love Fist. Just like fellow Love Fist band members Dick and Percy, his name is a sex joke from Rockstar as it is a slang term for a penis. Willy is the only member of Love Fist that doesn't wear black gloves. According to Jezz Torrent, Willie wears women's underwear. During Grand Theft Auto: Vice City, Willy did not make a physical appearance, although he was present in the mission Publicity Tour.
By 1992 either he or Percy had left the band, as seen in the billboard for their album "Clear the Custard" in Los Santos, San Andreas.