Dokken was composed of founder Don Dokken on vocals, George Lynch on lead guitars, Juan Croucier on bass, and "Wild" Mick Brown on drums. In 1983 Croucier left Dokken in order to join Ratt and was replaced by Jeff Pilson. Currently, Dokken and Brown remain from the original line-up. After several personnel changes on guitar, Dokken's attorney Jon Levin stepped in to fill the role in 2004. In 2001, Barry Sparks replaced Jeff Pilson on the bass guitar. In 2009, Sean McNabb replaced Barry Sparks on bass guitar.